Question

(x+7) (x-7)
solve it​

Answer 1

Answer:

Step-by-step explanation:

(x+7) (x-7)

$x^{2}$ - 7x +7x - 49

$x^{2}$ - 49

Answer 2

Answer:

(x+7) (x-7)

x(x-7) + 7(x-7)

x^2 - 7x + 7x - 49

x^2 - 49

(x)^2 - (7)^2

(x+7) (x-7) = (x)^2 - (7)^2