## How to learn about radical expressions and equations ?

**Moderators:** gmalivuk, Moderators General, Prelates

### How to learn about radical expressions and equations ?

Where should i start ?

Last edited by monkey3 on Sun May 28, 2017 3:42 am UTC, edited 1 time in total.

### Re: How to learn about rational expressions and equations ?

A bit more information about your current mathematical education would be helpful for us to guide you in the correct direction.

### Re: How to learn about rational expressions and equations ?

I am someone who lost a bsc computer science degree because i suck at mathematics

### Re: How to learn about rational expressions and equations ?

"suck at mathematics" isn't really helpful. Math builds on itself; we need to know what you know well before we can help you go from there to what you don't know well. Somebody posted a test for you to take; did you take it? It had questions covering arithmetic through calculus. If you can't add fractions, it's useless to discuss polynomials. If you already understand algebra, it's a waste of time to "teach" you about negative numbers because you already know them. You can't be good at algebra unless you already understand negative numbers.monkey3 wrote:I am someone who lost a bsc computer science degree because i suck at mathematics

I am beginning to suspect that one of the reasons you "suck at math" is that you don't want to do the work.

I say this because you ask questions here of the "how can I learn about [x]", where [x] covers the range from arithmetic to calculus, and you ask these questions as if your lack of understanding is just an isolated blip in the overall field of math. It's not. It's fundamental. You need to understand from the beginning, or you will never understand to the end.

And then you don't tell us what your 'beginning' is.

So, here's how to prepare to learn about rational expressions and equations. Find a place, such as a high school, a website (e.g. freemathtest.com, which was the first hit in duckduckgo with the search phrase "math tests"), or a group like this message board, and take a test to see how well you can do fourth grade math. Then fifth grade math. Then sixth grade math. Continue on until you aren't doing well (say, 80%). Then stop. That's what you need to master first. Notice that I'm starting way early. The first tests should be really easy, but if they are not, stop right there and master that material. We'll help you, but you have to show evidence that you're doing the work too. Here's an example:

**Spoiler:**

**Spoiler:**

If this grade level was easy, great; move on to the next grade level and test yourself.

Let us know how you do. We can't help you without knowing this.

From a standing start, it's ten years from arithmetic to differential equations. There are no shortcuts.

I suspect however that you are not at a standing start, but have actually taken some math and did poorly, and am guessing that you did poorly because you didn't understand the prior material. If that is the case, you should progress faster, but only if you start far enough back for it to be easy. That may mean arithmetic. If so, so be it. It will feel good to do math (of any sort) easily.

Jose

Last edited by ucim on Thu May 25, 2017 6:19 pm UTC, edited 4 times in total.

Order of the Sillies, Honoris Causam - bestowed by charlie_grumbles on NP 859 * OTTscar winner: Wordsmith - bestowed by yappobiscuts and the OTT on NP 1832 * Ecclesiastical Calendar of the Order of the Holy Contradiction * Please help addams if you can. She needs all of us.

### Re: How to learn about rational expressions and equations ?

Thanks for the reply , I am from india and i always thought there was something wrong with our syllabus

You know i have been trying to narrow it down for some time now from those materials ,

Let me show you that first .

That last part about "radical equation " is something i don't have any clue at all .

I am looking for a book which has that particular part

You know i have been trying to narrow it down for some time now from those materials ,

Let me show you that first .

**Spoiler:**

That last part about "radical equation " is something i don't have any clue at all .

I am looking for a book which has that particular part

- Soupspoon
- You have done something you shouldn't. Or are about to.
**Posts:**3274**Joined:**Thu Jan 28, 2016 7:00 pm UTC**Location:**53-1

### Re: How to learn about rational expressions and equations ?

monkey3 wrote:That last part about "radical equation " is something i don't have any clue at all .

I am looking for a book which has that particular part

You include so much other stuff in there, seemingly apropos of nothing, that I'm wondering if you're saying "I understand everything mathematical there, except why 'root of (ax plus b) equals c' is called a 'radical equation'. So why is it?"...

Is it that? Because (speaking for myself) I don't understand what other single point in the whole gamut you might be getting stuck at. It could be anywhere.

e.g., can you rewrite √a=b or c=³√d without the root symbols?

### Re: How to learn about rational expressions and equations ?

This doesn't help. What we need to know is what it is that you know, in an "I can solve the equation" sense as well as in the "I know what the words mean" sense.monkey3 wrote:You know i have been trying to narrow it down for some time now from those materials ,

Let me show you that first .

To that end, for the little arithmetic example I gave you, which of the following is true:

1: I solved it easily and got the right answer.

2: I solved it with effort and got the right answer.

3: I tried to solve it and got the wrong answer, but I understand my mistake.

4: I could not solve it and don't understand it.

That kind of thing is what will be helpful to us.

You post things like:

The prime factor form of 70 is 2 × 5 × 7.

The prime factor form of 90 is 2 × 3 × 3 × 5, and so on.

Similarly, we can express algebraic expressions as products of their factors. This is

what we shall learn to do in this chapter.

But you don't say whether you actually learned the material in that chapter. You need to start with the first chapter where you didn't learn the material. Disregard the rest.

Jose

Order of the Sillies, Honoris Causam - bestowed by charlie_grumbles on NP 859 * OTTscar winner: Wordsmith - bestowed by yappobiscuts and the OTT on NP 1832 * Ecclesiastical Calendar of the Order of the Holy Contradiction * Please help addams if you can. She needs all of us.

- Eebster the Great
**Posts:**2978**Joined:**Mon Nov 10, 2008 12:58 am UTC

### Re: How to learn about rational expressions and equations ?

If you find some problems online in a given topic (solving exponential equations, for instance) and you don't see the answers right away, try to solve as many as you can. If you can solve almost all of the questions in a given topic without too much difficulty before seeing any answers or asking anyone for help, and then you check and see that your answers are almost all correct, only then have you mastered the topic sufficiently to move on.

I don't know too many resources or this specifically, but google should help. And I agree that you have to start with the easy stuff (which, if it really is easy, won't take long anyway) before moving up.

I don't know too many resources or this specifically, but google should help. And I agree that you have to start with the easy stuff (which, if it really is easy, won't take long anyway) before moving up.

### Re: How to learn about rational expressions and equations ?

Thanks for the replies ,

I will answer your questions after i go through a revision of some material , which is from 6th grade to grade 12 mathematics texts found here

http://ncert.nic.in/textbook/textbook.htm

I was a bit busy arranging some texts in some order so that i could learn it in this order .

http://www.sosmath.com/algebra/solve/solve0/solve0.html

I think this should be a good start ,

http://ncert.nic.in/ncerts/l/hemh106.pdf

With the help from couple of texts like these

I should be able to improve my math .

I will answer your questions after i go through a revision of some material , which is from 6th grade to grade 12 mathematics texts found here

http://ncert.nic.in/textbook/textbook.htm

I was a bit busy arranging some texts in some order so that i could learn it in this order .

http://www.sosmath.com/algebra/solve/solve0/solve0.html

I think this should be a good start ,

http://ncert.nic.in/ncerts/l/hemh106.pdf

With the help from couple of texts like these

I should be able to improve my math .

- Soupspoon
- You have done something you shouldn't. Or are about to.
**Posts:**3274**Joined:**Thu Jan 28, 2016 7:00 pm UTC**Location:**53-1

### Re: How to learn about rational expressions and equations ?

monkey3 wrote:I will answer your questions after i go through a revision of some material , which is from 6th grade to grade 12 mathematics texts found here

Please take your time to do that, if you find it necessary.

### Re: How to learn about rational expressions and equations ?

Yes , Thanks for the replies

### Re: How to learn about rational expressions and equations ?

monkey3, I would like you go to back to this post that I made to you a few weeks ago on this topic. I gave you five mathematics problems covering some of the topics that you're interested in. Did you attempt any of these? If so, can you post what you did?

There's something really important that you seem to be missing about mathematics. You will never be able to learn mathematics by just reading about it. You absolutely must do problems--lots of them--to learn mathematics. Stop reviewing material. Start solving problems. Figure out the boundaries of your knowledge, then start looking for educational materials to help you expand it. There's no point in reading about algebra if you can't do arithmetic; there's no point in reading about calculus if you can't do algebra.

There's something really important that you seem to be missing about mathematics. You will never be able to learn mathematics by just reading about it. You absolutely must do problems--lots of them--to learn mathematics. Stop reviewing material. Start solving problems. Figure out the boundaries of your knowledge, then start looking for educational materials to help you expand it. There's no point in reading about algebra if you can't do arithmetic; there's no point in reading about calculus if you can't do algebra.

### Re: How to learn about rational expressions and equations ?

LaserGuy ,

i needed to arrange some texts in order , before i could start working on problems . I am going to take print outs of a few texts and i am going to start practicing with problems from monday

i found this really awesome text online , it has everything that a beginner needs .

https://hillcrestmath.files.wordpress.com/2010/08/8th-grade-algebra-i-textbook.pdf

This below website has rest of the texts from grade 1 to grade 12 .

http://ncert.nic.in/textbook/textbook.htm

I am a commerce degree student right now , and i am also working

I will start practicing whenever i have free time

i needed to arrange some texts in order , before i could start working on problems . I am going to take print outs of a few texts and i am going to start practicing with problems from monday

i found this really awesome text online , it has everything that a beginner needs .

https://hillcrestmath.files.wordpress.com/2010/08/8th-grade-algebra-i-textbook.pdf

This below website has rest of the texts from grade 1 to grade 12 .

http://ncert.nic.in/textbook/textbook.htm

I am a commerce degree student right now , and i am also working

I will start practicing whenever i have free time

### Who is online

Users browsing this forum: No registered users and 8 guests