-6=-2+u^2

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Solution for -6=-2+u^2 equation: 



-6=-2+u^2

We move all terms to the left:

-6-(-2+u^2)=0

We get rid of parentheses

-u^2+2-6=0

We add all the numbers together, and all the variables

-1u^2-4=0

a = -1; b = 0; c = -4;
Δ = b2-4ac
Δ = 02-4·(-1)·(-4)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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