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21 July, 09:47

The solution set for 7q^2-28=0

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  1. 21 July, 12:28
    0
    7q² - 28 = 0

    + 28 + 28

    7q² = 28

    7 7

    q² = 4

    q = ±4

    q = 4 or q = - 4

    Solution Set: {±4} and q = 4 or q = - 4
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