4x^2+7=-4x

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



4x^2+7=-4x

We move all terms to the left:

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

We get rid of parentheses

4x^2+4x+7=0

a = 4; b = 4; c = +7;
Δ = b2-4ac
Δ = 42-4·4·7
Δ = -96
Delta is less than zero, so there is no solution for the equation

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