2x-12=x*x

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Solution for 2x-12=x*x equation: 



2x-12=x*x

We move all terms to the left:

2x-12-(x*x)=0

We add all the numbers together, and all the variables

2x-(+x*x)-12=0

We get rid of parentheses

2x-x*x-12=0

Wy multiply elements

-1x^2+2x-12=0

a = -1; b = 2; c = -12;
Δ = b2-4ac
Δ = 22-4·(-1)·(-12)
Δ = -44
Delta is less than zero, so there is no solution for the equation

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