-2x(4+2x)=6

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Solution for -2x(4+2x)=6 equation: 



-2x(4+2x)=6

We move all terms to the left:

-2x(4+2x)-(6)=0

We add all the numbers together, and all the variables

-2x(2x+4)-6=0

We multiply parentheses

-4x^2-8x-6=0

a = -4; b = -8; c = -6;
Δ = b2-4ac
Δ = -82-4·(-4)·(-6)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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