K kalena1964 New member Joined May 28, 2008 Messages 3 May 28, 2008 #1 Can someone help? for somer reason, I can't seem to solve this problem: a^3 - 8 divided by a - 2 = :?: I would greatly appreciate it!!!! I need it for my student tomorrow morning. I'm a tutor and seem stuck on this fairly easy problem.

Can someone help? for somer reason, I can't seem to solve this problem: a^3 - 8 divided by a - 2 = :?: I would greatly appreciate it!!!! I need it for my student tomorrow morning. I'm a tutor and seem stuck on this fairly easy problem.

G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,216 May 28, 2008 #2 You have forgotten about the difference of two cubes. \(\displaystyle a^{3}-8=(a)^{3}-(2)^{3}=(a-2)(a^{2}+2a+4)\)

You have forgotten about the difference of two cubes. \(\displaystyle a^{3}-8=(a)^{3}-(2)^{3}=(a-2)(a^{2}+2a+4)\)