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Factor the expression x2 - 49. A. 7(x² – 7) B. 7.(2-7) C. 2+7(2-7) D. (x + 7)(x-7)
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1 vote
Factor the expression x2 - 49.

A. 7(x² – 7)
B. 7.(2-7)
C. 2+7(2-7)
D. (x + 7)(x-7)

User Grzegorz Bokota
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3.2k points

1 Answer

2 votes
x^2 - 49 = (x + 7)(x - 7) = x^2 - 7x + 7x = 49 = x^2 - 49
User Josh Silveous
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3.8k points
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