how do you factor 9x squared -36x+36

Answer 1

It's 81. 9x9=81. 81-36=65. 65+36=81

Answer 2

first take out a common factor of 9 which leaves you with

9(x^2 - 4x + 4) , the bracket is a perfect square, so....

9(x-2)^2

Answer 3

Simplify and state the restrisctions on the variables.

4/mn * m/2