4r^2-5r-3=-11

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Solution for 4r^2-5r-3=-11 equation: 



4r^2-5r-3=-11

We move all terms to the left:

4r^2-5r-3-(-11)=0

We add all the numbers together, and all the variables

4r^2-5r+8=0

a = 4; b = -5; c = +8;
Δ = b2-4ac
Δ = -52-4·4·8
Δ = -103
Delta is less than zero, so there is no solution for the equation

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