Answer:
x²-49
Step-by-step explanation:
(x+7)(x-7)
x(x-7)+7(x-7)
x²-7x+7(x-7)
x²-7x+7x-49
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Answers & Comments
Answer:
x²-49
Step-by-step explanation:
(x+7)(x-7)
x(x-7)+7(x-7)
x²-7x+7(x-7)
x²-7x+7x-49
x²-49