Radical division problem

[thebadplan]

(sqr(3) - sqr(2)) / (sqr(3) + sqr(2))

I simply have no ideea how to get to an answer, not even a single step.(answer is 5 - 2sqr(6))
Anyone have any suggestions?

 

[Ishuda]

(sqr(3) - sqr(2)) / (sqr(3) + sqr(2))

I simply have no ideea how to get to an answer, not even a single step.(answer is 5 - 2sqr(6))
Anyone have any suggestions?

With problems like this, the identity
(a - b) (a + b) = a² - b²
So, you have an a+b [a=sqrt(3), b= sqrt(2)] in the denominator and if you multiply numerator and denominator by a-b, you can clear the denominator of the square roots.

 

[stapel]

(sqr(3) - sqr(2)) / (sqr(3) + sqr(2))

I simply have no ideea how to get to an answer, not even a single step.

Would it be correct to assume that the instructions said something like "simplify"? If so, and because you are completely unfamiliar with this topic, then the first step will be to learn the general techniques. You can start with this listing of lessons.

After you have studied at least two lessons from the link, please attempt this exercise. If you get stuck, you can then reply with a clear listing of your efforts so far. Thank you!