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16x-x2-64+4x=48
We move all terms to the left:
16x-x2-64+4x-(48)=0
We add all the numbers together, and all the variables
-1x^2+20x-112=0
a = -1; b = 20; c = -112;
Δ = b2-4ac
Δ = 202-4·(-1)·(-112)
Δ = -48
Delta is less than zero, so there is no solution for the equation
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