a2+12-7=0

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Solution for a2+12-7=0 equation: 



a2+12-7=0

We add all the numbers together, and all the variables

a^2+5=0

a = 1; b = 0; c = +5;
Δ = b2-4ac
Δ = 02-4·1·5
Δ = -20
Delta is less than zero, so there is no solution for the equation

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