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27 February, 20:39

What are the solution of a quadratic equation 49x^2 = 9

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  1. 27 February, 23:04
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    x = ±3/7

    Step-by-step explanation:

    49 x^2 = 9

    Divide each side by 49

    49/49 x^2 = 9/49

    x^2 = 9/49

    Take the square root of each side

    sqrt (x^2) = ±sqrt (9/49)

    We know sqrt (a/b) = sqrt (a) / sqrt (b)

    x = ±sqrt (9) / sqrt (49)

    x = ±3/7
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