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5y^2+20y=-150
We move all terms to the left:
5y^2+20y-(-150)=0
We add all the numbers together, and all the variables
5y^2+20y+150=0
a = 5; b = 20; c = +150;
Δ = b2-4ac
Δ = 202-4·5·150
Δ = -2600
Delta is less than zero, so there is no solution for the equation
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