Question

Factor Completely: x2 − 49

(x − 7)(x − 7)

(x + 7)(x − 7)

(x + 7)(x + 7)

Prime

Answer 1

Hint: Use the difference of squares rule

Answer 2

If you forget the rule, then

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

Answer 3

So can you write 49 in the form b^2 where 'b' is some integer (or whole number)?

Answer 4

so would it be (x + 7)(x − 7)

Answer 5

you nailed it

Answer 6

x^2 - 49


x^2 - 7^2


(x + 7)(x - 7)

Answer 7

Thank you !

Answer 8

you're welcome