Factor the perfect square.x2 + 40x + 400

A. x2 + 40x + 400
B. (x + 20)2
C. (x - 20)2
D. (x + 20)(x - 20)


Answer: B

Mathematics

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B.

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C.

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D.

?None of the above


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?b and c


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Fill in the blank(s) with the appropriate word(s).

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