6n-2n(n+4)=15

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Solution for 6n-2n(n+4)=15 equation: 



6n-2n(n+4)=15

We move all terms to the left:

6n-2n(n+4)-(15)=0

We multiply parentheses

-2n^2+6n-8n-15=0

We add all the numbers together, and all the variables

-2n^2-2n-15=0

a = -2; b = -2; c = -15;
Δ = b2-4ac
Δ = -22-4·(-2)·(-15)
Δ = -116
Delta is less than zero, so there is no solution for the equation

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