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n(n+6)=-60
We move all terms to the left:
n(n+6)-(-60)=0
We add all the numbers together, and all the variables
n(n+6)+60=0
We multiply parentheses
n^2+6n+60=0
a = 1; b = 6; c = +60;
Δ = b2-4ac
Δ = 62-4·1·60
Δ = -204
Delta is less than zero, so there is no solution for the equation
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