2x(X+2)-6=X^2+4x-6

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Solution for 2x(X+2)-6=X^2+4x-6 equation: 



2x(x+2)-6=x^2+4x-6

We move all terms to the left:

2x(x+2)-6-(x^2+4x-6)=0

We multiply parentheses

2x^2+4x-(x^2+4x-6)-6=0

We get rid of parentheses

2x^2-x^2+4x-4x+6-6=0

We add all the numbers together, and all the variables

x^2=0

a = 1; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·1·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{2}=0$

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