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16 August, 19:49

Write the expression 7x^3-28xy^2 as the product of 3 factors

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Answers (2)
  1. 16 August, 21:44
    0
    7x (x - 2y) (x + 2y).

    Step-by-step explanation:

    First take out the GCF which is 7x:

    7x^3-28xy^2

    = 7x (x^2 - 4y^2)

    Now factor the expression in the brackets:

    = 7x (x - 2y) (x + 2y) (answer).
  2. 16 August, 22:51
    0
    7·x^3 - 28·x·y^2

    = 7·x· (x^2 - 4·y^2)

    = 7·x· (x + 2·y) · (x - 2·y)
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