Question

6a square + a - 12​

Answer 1

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Answer 2

$6a ^{2} + a - 12 = 0$

$6a ^{2} + (9 - 8)a - 12 = 0$

$6a ^{2} + 9a - 8a - 12 = 0 \\ 3a(2a + 3) - 4(2a + 3) = 0\\ (2a + 3)(3a - 4) = 0 \\ a = - 3 \div 2 \\ a = 4 \div 3$

a=-3/2 or 4/3