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r2=-98
We move all terms to the left:
r2-(-98)=0
We add all the numbers together, and all the variables
r^2+98=0
a = 1; b = 0; c = +98;
Δ = b2-4ac
Δ = 02-4·1·98
Δ = -392
Delta is less than zero, so there is no solution for the equation
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