2x-4=x2

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Solution for 2x-4=x2 equation: 



2x-4=x2

We move all terms to the left:

2x-4-(x2)=0

We add all the numbers together, and all the variables

-1x^2+2x-4=0

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

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