5r^2+4=4r

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Solution for 5r^2+4=4r equation: 



5r^2+4=4r

We move all terms to the left:

5r^2+4-(4r)=0

a = 5; b = -4; c = +4;
Δ = b2-4ac
Δ = -42-4·5·4
Δ = -64
Delta is less than zero, so there is no solution for the equation

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