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-y-28+y^2=2y+2y^2
We move all terms to the left:
-y-28+y^2-(2y+2y^2)=0
We add all the numbers together, and all the variables
y^2-(2y+2y^2)-1y-28=0
We get rid of parentheses
y^2-2y^2-2y-1y-28=0
We add all the numbers together, and all the variables
-1y^2-3y-28=0
a = -1; b = -3; c = -28;
Δ = b2-4ac
Δ = -32-4·(-1)·(-28)
Δ = -103
Delta is less than zero, so there is no solution for the equation
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