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v^2-2=-7
We move all terms to the left:
v^2-2-(-7)=0
We add all the numbers together, and all the variables
v^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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