q^2=-72

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Solution for q^2=-72 equation: 



q^2=-72

We move all terms to the left:

q^2-(-72)=0

We add all the numbers together, and all the variables

q^2+72=0

a = 1; b = 0; c = +72;
Δ = b2-4ac
Δ = 02-4·1·72
Δ = -288
Delta is less than zero, so there is no solution for the equation

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