-2n(n+3)=9

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Solution for -2n(n+3)=9 equation: 



-2n(n+3)=9

We move all terms to the left:

-2n(n+3)-(9)=0

We multiply parentheses

-2n^2-6n-9=0

a = -2; b = -6; c = -9;
Δ = b2-4ac
Δ = -62-4·(-2)·(-9)
Δ = -36
Delta is less than zero, so there is no solution for the equation

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