-d^2-2d=5

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Solution for -d^2-2d=5 equation: 



-d^2-2d=5

We move all terms to the left:

-d^2-2d-(5)=0

We add all the numbers together, and all the variables

-1d^2-2d-5=0

a = -1; b = -2; c = -5;
Δ = b2-4ac
Δ = -22-4·(-1)·(-5)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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