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x-x(10/100)=500
We move all terms to the left:
x-x(10/100)-(500)=0
We add all the numbers together, and all the variables
x-x(+10/100)-500=0
We multiply parentheses
-10x^2+x-500=0
a = -10; b = 1; c = -500;
Δ = b2-4ac
Δ = 12-4·(-10)·(-500)
Δ = -19999
Delta is less than zero, so there is no solution for the equation
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