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2b^2-3b+85=-5
We move all terms to the left:
2b^2-3b+85-(-5)=0
We add all the numbers together, and all the variables
2b^2-3b+90=0
a = 2; b = -3; c = +90;
Δ = b2-4ac
Δ = -32-4·2·90
Δ = -711
Delta is less than zero, so there is no solution for the equation
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