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5n^2-2=-51
We move all terms to the left:
5n^2-2-(-51)=0
We add all the numbers together, and all the variables
5n^2+49=0
a = 5; b = 0; c = +49;
Δ = b2-4ac
Δ = 02-4·5·49
Δ = -980
Delta is less than zero, so there is no solution for the equation
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