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20 November, 16:49

Find the product

-5r3 (2r2 - 3r - 5)

A) - 10r5 - 15r4 - 25r3

B) - 10r5 + 15r4 + 25r3

C) 10r5 - 15r4 - 25r3

D) - 10r6 + 15r3 + 25r3

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Answers (1)
  1. 20 November, 18:15
    0
    B) - 10r5 + 15r4 + 25r3

    Step-by-step explanation:

    -5r3 (2r2 - 3r - 5)

    apply distributive property:

    -5r3 * (2r2) - 5r3 * ( - 3r) - 5r3 * ( - 5)

    -10r5 + 15r4 + 25r3
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