23=5x+2-x2

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Solution for 23=5x+2-x2 equation: 



23=5x+2-x2

We move all terms to the left:

23-(5x+2-x2)=0

We add all the numbers together, and all the variables

-(+5x-1x^2+2)+23=0

We get rid of parentheses

1x^2-5x-2+23=0

We add all the numbers together, and all the variables

x^2-5x+21=0

a = 1; b = -5; c = +21;
Δ = b2-4ac
Δ = -52-4·1·21
Δ = -59
Delta is less than zero, so there is no solution for the equation

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