2n-9=n2

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Solution for 2n-9=n2 equation: 



2n-9=n2

We move all terms to the left:

2n-9-(n2)=0

We add all the numbers together, and all the variables

-1n^2+2n-9=0

a = -1; b = 2; c = -9;
Δ = b2-4ac
Δ = 22-4·(-1)·(-9)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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