x+(x-40)=x*x=40

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Solution for x+(x-40)=x*x=40 equation: 



x+(x-40)=x*x=40

We move all terms to the left:

x+(x-40)-(x*x)=0

We add all the numbers together, and all the variables

x+(x-40)-(+x*x)=0

We get rid of parentheses

x+x-x*x-40=0

We add all the numbers together, and all the variables

2x-x*x-40=0

Wy multiply elements

-1x^2+2x-40=0

a = -1; b = 2; c = -40;
Δ = b2-4ac
Δ = 22-4·(-1)·(-40)
Δ = -156
Delta is less than zero, so there is no solution for the equation

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