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k(k+4)=-8
We move all terms to the left:
k(k+4)-(-8)=0
We add all the numbers together, and all the variables
k(k+4)+8=0
We multiply parentheses
k^2+4k+8=0
a = 1; b = 4; c = +8;
Δ = b2-4ac
Δ = 42-4·1·8
Δ = -16
Delta is less than zero, so there is no solution for the equation
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