1. ## rregarding studying

how to read textbook of math while studying

2. ## Re: rregarding studying

Huh? Is this a question? Before, it looked like you had the question:

$\sqrt{x+15}+\sqrt{x} = 15$

If you are trying to solve for $x$, I recommend multiplying both sides by the conjugate: $\sqrt{x+15}-\sqrt{x}$

to get:

$(x+15)-(x) = 15\left(\sqrt{x+15}-\sqrt{x}\right)$

Now, you have two equations:
$\sqrt{x+15}+\sqrt{x} = 15$
$\sqrt{x+15}-\sqrt{x} = 1$

$2\sqrt{x+15} = 16$

Now, this is easy to solve, and we find $x = 49$.

3. ## Re: rregarding studying

Originally Posted by sukalp
how to read textbook of math while studying
yes ... reading a textbook is a good idea to supplement studying.

4. ## Re: rregarding studying

Slip Eternal,skeeter
The Question which I am trying to asking is :-
When we are doing self studying ,What is a strategy we should follow while Reading Math Textbook Chapter?
Example-3 D Geometry
so in this chapter