# Thread: How does this fraction simplify into that?

1. ## How does this fraction simplify into that?

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Huh?
The first equation is the original, the second one is the answer. A hero is needed to assist me in this strange paradise of problem!

2. ## Re: How does this fraction simplify into that?

Originally Posted by bossbasslol
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Huh?
The first equation is the original, the second one is the answer. A hero is needed to assist me in this strange paradise of problem!
OR, if you prefer to work in the order given, start with the LHS and rationalise the numerator.

3. ## Re: How does this fraction simplify into that?

Originally Posted by bossbasslol
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$\left(\sqrt{25-(x+h)^2}-\sqrt{25-x^2}\right)\left(\sqrt{25-(x+h)^2}+\sqrt{25-x^2}\right)=\left(25-(x+h)^2-(25-x^2)\right)$

\begin{align*}&= \\ \end{align*}