Question

Which of the following is a factor of 27x3 – 64y3?

Answer 1

3x - 4y

Answer 2

You have the difference of 2 perfect cubes and that can be factored as follows:

a^3 - b^3 = (a - b)(a^2 + ab + b^2) where a = 3x and b = 4y

Answer 3

I'm pretty sure this is the same question on an assignment I'm doing. I think one of the factors is 9x^2+12xy+16y^2

Hope this helps!