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17 March, 09:57

Which expression is equivalent to the given expression?

(10c6d-5) (2c-5d4)

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  1. 17 March, 13:00
    0
    120c²d - 1200cd² - 10c + 100d

    Step-by-step explanation:

    We will first of all evalute inide the bracket then we expand it.

    (10c6d-5) (2c-5d4)

    = (60cd-5) (2c-20d)

    = 60cd*2c - 60cd*20d - 5*2c + 5*20d

    = 120c²d - 1200cd² - 10c + 100d
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