0.5x^2-1=2x-3

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Solution for 0.5x^2-1=2x-3 equation: 



0.5x^2-1=2x-3

We move all terms to the left:

0.5x^2-1-(2x-3)=0

We get rid of parentheses

0.5x^2-2x+3-1=0

We add all the numbers together, and all the variables

0.5x^2-2x+2=0

a = 0.5; b = -2; c = +2;
Δ = b2-4ac
Δ = -22-4·0.5·2
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

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

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