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23 June, 14:21

Which expression is the factorization of x2 + 10x + 21?

A. (x + 3) (x + 7)

B. (x + 4) (x + 6)

C. (x + 6) (x + 15)

D. (x + 7) (x + 14)

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Answers (2)
  1. 23 June, 14:28
    0
    It took me a while to figure this one out, but the answer is A.
  2. 23 June, 14:46
    0
    A. X multiplied by X is X2, 3X + 7X = 10X and 3 times 7 = 21
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