-2n(n+8)+6(5+2n)=48

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Solution for -2n(n+8)+6(5+2n)=48 equation: 



-2n(n+8)+6(5+2n)=48

We move all terms to the left:

-2n(n+8)+6(5+2n)-(48)=0

We add all the numbers together, and all the variables

-2n(n+8)+6(2n+5)-48=0

We multiply parentheses

-2n^2-16n+12n+30-48=0

We add all the numbers together, and all the variables

-2n^2-4n-18=0

a = -2; b = -4; c = -18;
Δ = b2-4ac
Δ = -42-4·(-2)·(-18)
Δ = -128
Delta is less than zero, so there is no solution for the equation

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