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x(1000-x)=5000000
We move all terms to the left:
x(1000-x)-(5000000)=0
We add all the numbers together, and all the variables
x(-1x+1000)-5000000=0
We multiply parentheses
-1x^2+1000x-5000000=0
a = -1; b = 1000; c = -5000000;
Δ = b2-4ac
Δ = 10002-4·(-1)·(-5000000)
Δ = -19000000
Delta is less than zero, so there is no solution for the equation
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