8r2-8r+10=8

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Solution for 8r2-8r+10=8 equation: 



8r^2-8r+10=8

We move all terms to the left:

8r^2-8r+10-(8)=0

We add all the numbers together, and all the variables

8r^2-8r+2=0

a = 8; b = -8; c = +2;
Δ = b2-4ac
Δ = -82-4·8·2
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$r=\frac{-b}{2a}=\frac{8}{16}=1/2$

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