Question

What are the zeroes of x^2 - 4x + 4

Answer 1

(x-2)(x-2)

Explanation:

We know this because -2 * -2 = 4 and -2 - 2 = -4

Answer 2

2

Explanation:

You expand on the quadratic to get (x-2)(x-2)

We know to do this because -2 - 2 = -4, and -2 * -2 = 4