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9y^-4-10y^2+1=0
We add all the numbers together, and all the variables
-10y^2+9y-3=0
a = -10; b = 9; c = -3;
Δ = b2-4ac
Δ = 92-4·(-10)·(-3)
Δ = -39
Delta is less than zero, so there is no solution for the equation
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