7x^2+21=14

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Solution for 7x^2+21=14 equation: 



7x^2+21=14

We move all terms to the left:

7x^2+21-(14)=0

We add all the numbers together, and all the variables

7x^2+7=0

a = 7; b = 0; c = +7;
Δ = b2-4ac
Δ = 02-4·7·7
Δ = -196
Delta is less than zero, so there is no solution for the equation

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