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x2-4x^2-1=0
We add all the numbers together, and all the variables
-3x^2-1=0
a = -3; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-3)·(-1)
Δ = -12
Delta is less than zero, so there is no solution for the equation
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