13r^2-10r+3=0

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Solution for 13r^2-10r+3=0 equation: 



13r^2-10r+3=0

a = 13; b = -10; c = +3;
Δ = b2-4ac
Δ = -102-4·13·3
Δ = -56
Delta is less than zero, so there is no solution for the equation

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