Question

What are the factors of x2 − 81?

(x + 9)(x − 9)

(x − 9)(x − 9)

(x + 3)(x − 27)

Prime

Answer 1

THE ANSWER IS CHOICE A.

Answer 2

(X+9)(x-9)

Answer 3

THIS IS BECAUSE U HAVE TO USE THE DIFFERENCE BW 2 SQUARES PROPERTY:
(A-B)(A+B)=A SQUARED-B SQUARED

Answer 4

Thank you :)

Answer 5

You Are Welcome....!