0=6x^2+18x+21

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Solution for 0=6x^2+18x+21 equation: 



0=6x^2+18x+21

We move all terms to the left:

0-(6x^2+18x+21)=0

We add all the numbers together, and all the variables

-(6x^2+18x+21)=0

We get rid of parentheses

-6x^2-18x-21=0

a = -6; b = -18; c = -21;
Δ = b2-4ac
Δ = -182-4·(-6)·(-21)
Δ = -180
Delta is less than zero, so there is no solution for the equation

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