I tried working it out but I didn't get the right answer... Btw the correct answer is "B" which is highlighted.... What did I do wrong?
You have the right idea, but you factored wrong. $\displaystyle (x^2)^2 - 8(x^2) - (3^2) \neq ( (x^2) - 3 )^2$. How do you factor $\displaystyle y^2 - 8y - 9$?
-Dan
Last edited by topsquark; Nov 23rd 2013 at 05:22 PM.