4x(x-2)=-7

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



4x(x-2)=-7

We move all terms to the left:

4x(x-2)-(-7)=0

We add all the numbers together, and all the variables

4x(x-2)+7=0

We multiply parentheses

4x^2-8x+7=0

a = 4; b = -8; c = +7;
Δ = b2-4ac
Δ = -82-4·4·7
Δ = -48
Delta is less than zero, so there is no solution for the equation

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