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2 May, 08:53

Which equation has the same solution as x^2+15+6=-2?

A. (x+7.5) ^2=48.25

B. (x-7.5) ^2=-64.25

C. (x-7.5) ^2=48.24

D. (x+7.5) ^2=64.25

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  1. 2 May, 11:06
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    the answer for this question is A. (x+7.5) ^2=48.25

    Step-by-step explanation:

    (x+7.5) ^2=48.25

    x^2 + 7.5x + 7.5x + (7.5^2) = 48.25

    x^2 + 15x + 56.25 = 48.25

    x^2 + 15x + (56.25 - 48.25) = 0

    x^2 + 15x + 8 = 0

    and you forget to put 'x' at 15 on the question ...
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