Question

Factor Completely: x2 − 49

(x − 7)(x − 7)

(x + 7)(x − 7)

(x + 7)(x + 7)

Prime

Answer 1

Difference of squares - \(( a+ b)( a- b) = a^2 - b^2\)

Answer 2

\( \color{Black}{\Rightarrow x^2 - 7^2 = ( x +7)(\cdots)}\)

Answer 3

would my answer be the second one?

Answer 4

Yea