Question

Factor completely: x2 - 49

(x - 7)(x - 7)

(x + 7)(x - 7)

(x + 7)(x + 7)

Prime


Isn't this one C?

Answer 1

B..

Answer 2

hint:

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

Answer 3

Thats what I meant sorry.

Answer 4

I know how to multiply I swear. Lol

Answer 5

lol

Answer 6

use this

a^2-b^2-(a+b)(a-b)

here a=x and b=7

Answer 7

@jim_thompson5910 already covered tht @zaibali.qasmi lol

Answer 8

Differences of squares are factored using this formula.

a^2−b^2=(a−b)(a+b)


Since both terms are perfect squares, find the values for a and b.

a^2=x^2, so a=x
b^2=49, so b=7

Answer 9

-,-

Answer 10

(x-7)(x+7)