4x-5x(x-1)=2x+4

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Solution for 4x-5x(x-1)=2x+4 equation: 



4x-5x(x-1)=2x+4

We move all terms to the left:

4x-5x(x-1)-(2x+4)=0

We multiply parentheses

-5x^2+4x+5x-(2x+4)=0

We get rid of parentheses

-5x^2+4x+5x-2x-4=0

We add all the numbers together, and all the variables

-5x^2+7x-4=0

a = -5; b = 7; c = -4;
Δ = b2-4ac
Δ = 72-4·(-5)·(-4)
Δ = -31
Delta is less than zero, so there is no solution for the equation

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