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r^2+8r+70=6
We move all terms to the left:
r^2+8r+70-(6)=0
We add all the numbers together, and all the variables
r^2+8r+64=0
a = 1; b = 8; c = +64;
Δ = b2-4ac
Δ = 82-4·1·64
Δ = -192
Delta is less than zero, so there is no solution for the equation
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