-6n(n-7)=84

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Solution for -6n(n-7)=84 equation: 



-6n(n-7)=84

We move all terms to the left:

-6n(n-7)-(84)=0

We multiply parentheses

-6n^2+42n-84=0

a = -6; b = 42; c = -84;
Δ = b2-4ac
Δ = 422-4·(-6)·(-84)
Δ = -252
Delta is less than zero, so there is no solution for the equation

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