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24 December, 09:15

Solve √ (3x+7) + 2√ (x-8) = 0.

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  1. 24 December, 09:33
    0
    The solution to this question is 39

    Step-by-step explanation:

    Given that:

    √ (3x+7) + 2√ (x-8) = 0.

    √ (3x+7) = -2√ (x-8) (i)

    square of the equation (i)

    Then

    (√ (3x+7)) ^2 = (-2√ (x-8)) ^2

    we know that √a*√a = (√a) ^2=a So,

    (3x+7) = 4 (x-8)

    3x+7=4x-32 / /multiply by 4

    32+7=4x-3x exchange the value.

    39=1x

    x=39.
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