Question

What is the simplified form of x^2-36 over x+6 ?


x - 6, with the restriction x ≠ -6
x - 6, with the restriction x ≠ 6
x + 6, with the restriction x ≠ 6
x + 6, with the restriction x ≠ -6

Answer 1

x^2-36 is a difference of squares, and it factores to (x+6)(x-6).
So you can cancel out the x+6 to get x - 6, but the restriction is still that x ≠ -6