Question

What expression is represented by the factorization below (x+13)(x-13)

A.x^2-169
B.x^2+26x+169
C.x^2-26x+169
D.x^2+169

Answer 1

A

Explanation:

note that these are the factors of a difference of squares

• a² - b² = (a + b)(a - b), hence

(x + 13)(x - 13)= x² - 13² = x² - 169 → A