What are the factors of x^2-81

A.) (x+9) (x-9)

B.) (x-9) (x-9)

C.) (x+3) (x-27)

D.) prime

Question

29 March, 03:59

+1

Answers (2)

Know the Answer?

Yaka · Answer 1

A.) (x+9) (x-9)

Step-by-step explanation:

x² - 81

x² - 9²

(x - 9) (x + 9)

Nosey · Answer 2

A. x-9 and x+9 because these are perfect squares. 9 times - 9 is - 81. x times x is x^2. 9 + - 9 is 0

What are the factors of x^2-81A.) (x+9) (x-9)B.) (x-9) (x-9)C.) (x+3) (x-27)D.) prime