1. ## Simplifying expressions

Q4: Simplify (by rationalizing the denominator) :

Q6: Simplify the following expression and evaluate it at x = -1, y = -2

2. Originally Posted by MrScorpion

Q4: Simplify (by rationalizing the denominator) :

Q6: Simplify the following expression and evaluate it at x = -1, y = -2

Please show some work by yourself!

Tonio

Moderator edit: And say where you get stuck.