a^2-7a+90=0

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Solution for a^2-7a+90=0 equation: 



a^2-7a+90=0

a = 1; b = -7; c = +90;
Δ = b2-4ac
Δ = -72-4·1·90
Δ = -311
Delta is less than zero, so there is no solution for the equation

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