Question

2m²-m-6=0
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Answer 1

$2m²-m-6=0 \\ 2 {m}^{2} + 3m - 4m - 6 = 0 \\ m \times (2m + 3) - 2(2m + 3) = 0 \\ (2m + 3) \times (m - 2) = 0 \\ 2m + 3 = 0 \\ m - 2 = 0 \\ m = - \frac{3}{2} \\ m = 2 \\ \\ m1 = - \frac{3}{2} \: \: \: \: \: \: \: m2 = 2$