Question

Factor the perfect square trinomial x2 − 12x + 36.

A. (x − 6)2
B. (x − 6)(x + 6)
C. (x + 6)2
D. (x − 12)2

Answer 1

A. (x-6)^2

x^2 - 12x + 36 is a perfect square trinomial, bevause half of -12 is -6 and -6 squared is 36.