4x(-2x-1)+3x=9

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Solution for 4x(-2x-1)+3x=9 equation: 



4x(-2x-1)+3x=9

We move all terms to the left:

4x(-2x-1)+3x-(9)=0

We add all the numbers together, and all the variables

3x+4x(-2x-1)-9=0

We multiply parentheses

-8x^2+3x-4x-9=0

We add all the numbers together, and all the variables

-8x^2-1x-9=0

a = -8; b = -1; c = -9;
Δ = b2-4ac
Δ = -12-4·(-8)·(-9)
Δ = -287
Delta is less than zero, so there is no solution for the equation

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