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-x^2+5x-6=2
We move all terms to the left:
-x^2+5x-6-(2)=0
We add all the numbers together, and all the variables
-1x^2+5x-8=0
a = -1; b = 5; c = -8;
Δ = b2-4ac
Δ = 52-4·(-1)·(-8)
Δ = -7
Delta is less than zero, so there is no solution for the equation
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