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^2=-Y^2-40
We move all terms to the left:
^2-(-Y^2-40)=0
We add all the numbers together, and all the variables
-(-Y^2-40)=0
We get rid of parentheses
Y^2+40=0
a = 1; b = 0; c = +40;
Δ = b2-4ac
Δ = 02-4·1·40
Δ = -160
Delta is less than zero, so there is no solution for the equation
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