2x^2+21-7=0

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Solution for 2x^2+21-7=0 equation: 



2x^2+21-7=0

We add all the numbers together, and all the variables

2x^2+14=0

a = 2; b = 0; c = +14;
Δ = b2-4ac
Δ = 02-4·2·14
Δ = -112
Delta is less than zero, so there is no solution for the equation

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