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2 October, 02:18

Simplify (4-b) (5b2+5b-4)

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Answers (1)
  1. 2 October, 05:07
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    Answer:15b^2-5b^3+24b-16

    Step-by-step explanation:

    (4-b) (5b^2+5b-4)

    Open the brackets

    20b^2+20b-16-5b^3-5b^2+4b

    Collect like terms

    20b^2-5b^2-5b^3+20b+4b-16

    15b^2-5b^3+24b-16
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