AoPS Wiki:Problem of the Day/June 30, 2011
< AoPS Wiki:Problem of the Day
Revision as of 18:58, 29 June 2011 by Btilm305 (talk | contribs) (Protected "AoPSWiki:Problem of the Day/June 30, 2011": Problem of the Day ([edit=sysop] (indefinite) [move=sysop] (indefinite)))
If 
, then which expression is equivalent to 
?
$\text{(A)}\ b^2-12a \qquad \text{(B)}\ b^2-15a^2 \\ \text{(C)}\a^2-9b \qquad \text{(D)}\ a-16b \\ \text{(E)}\ a^2-18b$ (Error compiling LaTeX. Unknown error_msg)
