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-x2+10x-41=0
We add all the numbers together, and all the variables
-1x^2+10x-41=0
a = -1; b = 10; c = -41;
Δ = b2-4ac
Δ = 102-4·(-1)·(-41)
Δ = -64
Delta is less than zero, so there is no solution for the equation
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