5x-x2=100

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Solution for 5x-x2=100 equation: 



5x-x2=100

We move all terms to the left:

5x-x2-(100)=0

We add all the numbers together, and all the variables

-1x^2+5x-100=0

a = -1; b = 5; c = -100;
Δ = b2-4ac
Δ = 52-4·(-1)·(-100)
Δ = -375
Delta is less than zero, so there is no solution for the equation

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