Question

What are the factors of x2 − 64?
Prime
(x − 4)(x + 16)
(x − 8)(x − 8)
(x + 8)(x − 8)

Answer 1

use:
a^2 - b^2 = (a-b)(a+b)

Answer 2

@teddybearbloom did you get started?

Answer 3

Try expanding each one.

Answer 4

ughh no idk what a and b are

Answer 5

in your ques i can clearly see a atleast , it`s x
so moving along same lines can you spot b ?

Answer 6

the answer is (x + 8)(x − 8)

Answer 7

difference of squares

\[a^2-b^2 = (a-b)(a+b)\]

i suggest memorizing this

Answer 8

but yes you have it right

in your case, a= x and b=8