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16 January, 22:12

What are the solutions to the equation below?

(x-4) (8x+64) = 0

A) x=-4 and x=-8

B) x=-4 and x=48

C) x=4 and x=-8

D) x=4 and x=8

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Answers (1)
  1. 16 January, 22:18
    0
    So, as you can see, there are actually two equations here:

    x - 4 = 0 and 8x+64=0

    So, we need to solve both of them to get the solution.

    x-4=0

    x = 4

    8x+64=0

    8x=-64

    x=-64/8

    x=-8

    So, the correct answer is C. x=4 and x=-8
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