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x(6-x)=36
We move all terms to the left:
x(6-x)-(36)=0
We add all the numbers together, and all the variables
x(-1x+6)-36=0
We multiply parentheses
-1x^2+6x-36=0
a = -1; b = 6; c = -36;
Δ = b2-4ac
Δ = 62-4·(-1)·(-36)
Δ = -108
Delta is less than zero, so there is no solution for the equation
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