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

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



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

We move all terms to the left:

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

We multiply parentheses

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



We calculate terms in parentheses: -(4x(x+1)), so:

4x(x+1)

We multiply parentheses

4x^2+4x

Back to the equation:

-(4x^2+4x)



We get rid of parentheses

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

We add all the numbers together, and all the variables

-4x^2+x-5=0

a = -4; b = 1; c = -5;
Δ = b2-4ac
Δ = 12-4·(-4)·(-5)
Δ = -79
Delta is less than zero, so there is no solution for the equation

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