7=-3c2

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Solution for 7=-3c2 equation: 



7=-3c^2

We move all terms to the left:

7-(-3c^2)=0

We get rid of parentheses

3c^2+7=0

a = 3; b = 0; c = +7;
Δ = b2-4ac
Δ = 02-4·3·7
Δ = -84
Delta is less than zero, so there is no solution for the equation

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