Answer: B. x² - 49

Step-by-step explanation:

=(X-7) (X+7)

=x²+7x-7x-49

=x²-49

I HOPE IT HELPS

MATH IS FUN

CARRY ON LEARNING

SOLUTION

• (x-7)(x+7)

Multiply the first terms

• x(x) = x²

Multiply the outer terms

• x(7) = 7x

Multiply the inner terms

• -7(x) = -7x

Multiply the Last terms

• -7(7) = -49

Now add all the terms that are alike

• x²+7x-7x-49
• x²+0-49
• x²-49

ANSWER

• x²-49

=======================