2a^2+4a=-7

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Solution for 2a^2+4a=-7 equation: 



2a^2+4a=-7

We move all terms to the left:

2a^2+4a-(-7)=0

We add all the numbers together, and all the variables

2a^2+4a+7=0

a = 2; b = 4; c = +7;
Δ = b2-4ac
Δ = 42-4·2·7
Δ = -40
Delta is less than zero, so there is no solution for the equation

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