-3x(2x+7)=-9x+7-4x

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Solution for -3x(2x+7)=-9x+7-4x equation: 



-3x(2x+7)=-9x+7-4x

We move all terms to the left:

-3x(2x+7)-(-9x+7-4x)=0

We add all the numbers together, and all the variables

-3x(2x+7)-(-13x+7)=0

We multiply parentheses

-6x^2-21x-(-13x+7)=0

We get rid of parentheses

-6x^2-21x+13x-7=0

We add all the numbers together, and all the variables

-6x^2-8x-7=0

a = -6; b = -8; c = -7;
Δ = b2-4ac
Δ = -82-4·(-6)·(-7)
Δ = -104
Delta is less than zero, so there is no solution for the equation

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