-39=2(2x+9)x

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Solution for -39=2(2x+9)x equation: 



-39=2(2x+9)x

We move all terms to the left:

-39-(2(2x+9)x)=0



We calculate terms in parentheses: -(2(2x+9)x), so:

2(2x+9)x

We multiply parentheses

4x^2+18x

Back to the equation:

-(4x^2+18x)



We get rid of parentheses

-4x^2-18x-39=0

a = -4; b = -18; c = -39;
Δ = b2-4ac
Δ = -182-4·(-4)·(-39)
Δ = -300
Delta is less than zero, so there is no solution for the equation

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