Question

What is the completely factored for of x^2-16xy+64y^2

Answer 1

(x-8y)^2

Explanation:

I used a calculator

Answer 2

(x - 8y)(x - 8y) or (x - 8y)^2

Explanation:

We need 2 numbers whose product is 64 and whose sum is -16.

They are -8 and -8.

So factoring:-

x^2 - 16xy + 64y^2

= (x - 8y)(x - 8y) or (x - 8y)^2