-11x^2+8x-2=-9x^2+4x

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Solution for -11x^2+8x-2=-9x^2+4x equation: 



-11x^2+8x-2=-9x^2+4x

We move all terms to the left:

-11x^2+8x-2-(-9x^2+4x)=0

We get rid of parentheses

-11x^2+9x^2-4x+8x-2=0

We add all the numbers together, and all the variables

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

a = -2; b = 4; c = -2;
Δ = b2-4ac
Δ = 42-4·(-2)·(-2)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-4}{-4}=1$

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