What is 9r squared-4s square over 9r plus 6s?

Answer 1

9r2-4s2/9r+6s

It looks like you can factors the numerator

(3r + 2s)(3r - 2s) [This is the factored form of 9r2-4s2]

Put this back into the equation

(3r+2s)(3r-2s)/9r+6s

You can also factor the denominator

3(3r+2s)

Put this back into the equation

(3r+2s)(3r-2s)/3(3r+2s)

You can cancel out the 3r+2s on top and bottom because they are the same they equal 1. Therefore your final answer is

3r-2s over 3

You could go further and say this is...

r-(2/3)s

either one is correct