4x(2x+1)=-4

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Solution for 4x(2x+1)=-4 equation: 



4x(2x+1)=-4

We move all terms to the left:

4x(2x+1)-(-4)=0

We add all the numbers together, and all the variables

4x(2x+1)+4=0

We multiply parentheses

8x^2+4x+4=0

a = 8; b = 4; c = +4;
Δ = b2-4ac
Δ = 42-4·8·4
Δ = -112
Delta is less than zero, so there is no solution for the equation

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