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Mathematics 7 Online
OpenStudy (anonymous):

solve for r r^2+3r=6

OpenStudy (anonymous):

\[r (r+3) = 6. \]

OpenStudy (rulnick):

r^2+3r-6 = 0, so, for example, you could try the quadratic formula with a=1, b=3, c=-6.

OpenStudy (rulnick):

r = ( -3 +/- sqrt(33) )/ 2

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