document.write( "Question 1134226: Fully factor 81(7a+3)^4 - 72(7a+3)^2 + 16 \n" ); document.write( "
Algebra.Com's Answer #751527 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Hint: the 2 outside terms are perfect squares.
\n" ); document.write( "
\n" ); document.write( "
\n" );