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3 August, 12:38

Factor a number, variable or expression out of the polynomial below

X (4x-5) + 9 (4x-5)

A) 9x (4x+5)

B) (x+9) (4x-5)

C) 9x (4x-5)

D) (X+9) (4x+5)

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Answers (1)
  1. 3 August, 16:12
    0
    Factor out the (4x-5), which is the GCF to go from

    x (4x-5) + 9 (4x-5)

    to

    (4x-5) (x+9)

    Note: (4x-5) (x+9) is the same as (x+9) (4x-5). The order of the factors does not matter. You can multiply in any order.

    Therefore, the final answer is choice B
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