Hello rebelspartan

Welcome to Math Help Forum!Three things you need here:

- (1)

- (2)

- (3)

So:

- Express the denominator (of the LHS) as , and then use (1) to express in terms of
- Use (3) to factorise the denominator
- Cancel (simplify) the whole fraction
- Use (2) on the remaining term in

... and you're there.

Can you do that?

Grandad