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23 May, 13:59

How do you factor 8m squared + 20m = 12

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  1. 23 May, 14:08
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    8m² + 20m = 12

    8m² + 20m - 12 = 12 - 12

    8m² + 20m - 12 = 0

    8m² + 24m - 4m - 12 = 0

    4m (2m) + 4m (6) - 2 (2m) - 2 (6) = 0

    4m (2m + 6) - 2 (2m + 6) = 0

    (4m - 2) (2m + 6) = 0

    4m - 2 = 0 ∨ 2m + 6 = 0

    + 2 + 2 - 6 - 6

    4m = 2 2m = - 6

    4 4 2 2

    m = ¹/₂ m = - 3

    The solution set is equal to {¹/₂, - 3}.
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