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5-2x^2=6
We move all terms to the left:
5-2x^2-(6)=0
We add all the numbers together, and all the variables
-2x^2-1=0
a = -2; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-2)·(-1)
Δ = -8
Delta is less than zero, so there is no solution for the equation
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