x+7=3x-4x2

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Solution for x+7=3x-4x2 equation: 



x+7=3x-4x^2

We move all terms to the left:

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

We get rid of parentheses

4x^2-3x+x+7=0

We add all the numbers together, and all the variables

4x^2-2x+7=0

a = 4; b = -2; c = +7;
Δ = b2-4ac
Δ = -22-4·4·7
Δ = -108
Delta is less than zero, so there is no solution for the equation

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