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x=x^2-400+12500
We move all terms to the left:
x-(x^2-400+12500)=0
We get rid of parentheses
-x^2+x+400-12500=0
We add all the numbers together, and all the variables
-1x^2+x-12100=0
a = -1; b = 1; c = -12100;
Δ = b2-4ac
Δ = 12-4·(-1)·(-12100)
Δ = -48399
Delta is less than zero, so there is no solution for the equation
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