+283 Find the largest value of r such that 6r^2 + 7r + 8 = 6.
I tried to factor it out so that it was (3r + 2)(2r + 1) where r = 2/3 and r = 1/2 but 2/3 was the incorrect answers so idk...
+36915 That SHOULD be r = - 2/3 and - 1/2 (note the negative sign!) 
