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5m^2=-9-4m
We move all terms to the left:
5m^2-(-9-4m)=0
We add all the numbers together, and all the variables
5m^2-(-4m-9)=0
We get rid of parentheses
5m^2+4m+9=0
a = 5; b = 4; c = +9;
Δ = b2-4ac
Δ = 42-4·5·9
Δ = -164
Delta is less than zero, so there is no solution for the equation
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