-2-(2/5)n=12

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Solution for -2-(2/5)n=12 equation: 



-2-(2/5)n=12

We move all terms to the left:

-2-(2/5)n-(12)=0



Domain of the equation: 5)n!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

-(+2/5)n-2-12=0

We add all the numbers together, and all the variables

-(+2/5)n-14=0

We multiply parentheses

-2n^2-14=0

a = -2; b = 0; c = -14;
Δ = b2-4ac
Δ = 02-4·(-2)·(-14)
Δ = -112
Delta is less than zero, so there is no solution for the equation

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