x-1+x-2=x^2+9

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Solution for x-1+x-2=x^2+9 equation: 



x-1+x-2=x^2+9

We move all terms to the left:

x-1+x-2-(x^2+9)=0

We add all the numbers together, and all the variables

2x-(x^2+9)-3=0

We get rid of parentheses

-x^2+2x-9-3=0

We add all the numbers together, and all the variables

-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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