r^2-16r-31=-149

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Solution for r^2-16r-31=-149 equation: 



r^2-16r-31=-149

We move all terms to the left:

r^2-16r-31-(-149)=0

We add all the numbers together, and all the variables

r^2-16r+118=0

a = 1; b = -16; c = +118;
Δ = b2-4ac
Δ = -162-4·1·118
Δ = -216
Delta is less than zero, so there is no solution for the equation

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