20=x-10*x^2

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Solution for 20=x-10*x^2 equation: 



20=x-10x^2

We move all terms to the left:

20-(x-10x^2)=0

We get rid of parentheses

10x^2-x+20=0

We add all the numbers together, and all the variables

10x^2-1x+20=0

a = 10; b = -1; c = +20;
Δ = b2-4ac
Δ = -12-4·10·20
Δ = -799
Delta is less than zero, so there is no solution for the equation

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