12=-3x-2x^2

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Solution for 12=-3x-2x^2 equation: 



12=-3x-2x^2

We move all terms to the left:

12-(-3x-2x^2)=0

We get rid of parentheses

2x^2+3x+12=0

a = 2; b = 3; c = +12;
Δ = b2-4ac
Δ = 32-4·2·12
Δ = -87
Delta is less than zero, so there is no solution for the equation

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