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28 November, 15:56

Solve each equation. 5x2 - 55 = 90

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  1. 28 November, 16:09
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    x = ± sqrt (29)

    Step-by-step explanation:

    5x^2 - 55 = 90

    Add 55 to each side

    5x^2 - 55+55 = 90+55

    5x^2 = 145

    Divide each side by 5

    5/5x^2 = 145/5

    x^2 = 29

    Take the square root of each side

    sqrt (x^2) = ± sqrt (29)

    x = ± sqrt (29)
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