3x(4-2x)=5x+9

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Solution for 3x(4-2x)=5x+9 equation: 



3x(4-2x)=5x+9

We move all terms to the left:

3x(4-2x)-(5x+9)=0

We add all the numbers together, and all the variables

3x(-2x+4)-(5x+9)=0

We multiply parentheses

-6x^2+12x-(5x+9)=0

We get rid of parentheses

-6x^2+12x-5x-9=0

We add all the numbers together, and all the variables

-6x^2+7x-9=0

a = -6; b = 7; c = -9;
Δ = b2-4ac
Δ = 72-4·(-6)·(-9)
Δ = -167
Delta is less than zero, so there is no solution for the equation

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