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17 March, 20:26

How do i do 2 x squared + 7=4

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  1. 17 March, 23:59
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    x = ±i sqrt (3/2)

    Step-by-step explanation:

    2x^2+7 = 4

    Subtract 7 from each side

    2x^2+7-7 = 4-7

    2x^2 = - 3

    Divide by 2 on each side

    2x^2/2 = - 3/2

    x^2 = - 3/2

    There is no real solution, only imaginary solutions

    Taking the square root of each side

    sqrt (x^2) = sqrt (-3/2)

    x = ±i sqrt (3/2)
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