2r^2-16r+80=9

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Solution for 2r^2-16r+80=9 equation: 



2r^2-16r+80=9

We move all terms to the left:

2r^2-16r+80-(9)=0

We add all the numbers together, and all the variables

2r^2-16r+71=0

a = 2; b = -16; c = +71;
Δ = b2-4ac
Δ = -162-4·2·71
Δ = -312
Delta is less than zero, so there is no solution for the equation

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