2x-4=x2+5

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Solution for 2x-4=x2+5 equation: 



2x-4=x2+5

We move all terms to the left:

2x-4-(x2+5)=0

We add all the numbers together, and all the variables

-(+x^2+5)+2x-4=0

We get rid of parentheses

-x^2+2x-5-4=0

We add all the numbers together, and all the variables

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

a = -1; b = 2; c = -9;
Δ = b2-4ac
Δ = 22-4·(-1)·(-9)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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