7n^2-9n+20=10

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Solution for 7n^2-9n+20=10 equation: 



7n^2-9n+20=10

We move all terms to the left:

7n^2-9n+20-(10)=0

We add all the numbers together, and all the variables

7n^2-9n+10=0

a = 7; b = -9; c = +10;
Δ = b2-4ac
Δ = -92-4·7·10
Δ = -199
Delta is less than zero, so there is no solution for the equation

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