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31 March, 04:58

What is the factored form of the following expression?

w2 + 18w + 77

A. (w - 7) (w + 11)

B. (w - 7) (w - 11)

C. (w + 7) (w + 11)

D. (w + 1) (w + 77)

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Answers (1)
  1. 31 March, 08:32
    0
    w^2 + 18w + 77 = 0

    breaking the middle term

    w^2 + 11w + 7w + 77 = 0

    making pairs,

    (w^2 + 11w) + (7w + 77) = 0

    w (w + 11) + 7 (w + 11) = 0

    (w+11) (w+7) = 0

    Hence,

    the best answer is:

    C. (w + 7) (w + 11)
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