Question

Please Help!

Factor completely x^2 − 36.
(x + 6)(x − 6)
(x + 6)(x + 6)
(x − 6)(x − 6)
Prime

Answer 1

(X+6)(x-6) is the answer

Answer 2

(x + 6)(x - 6)

Explanation:

x² - 36 ← is a difference of squares and factors in general as

• a² - b² = (a + b)(a - b), thus

x² - 36

= x² - 6² = (x + 6)(x - 6)