document.write( "Question 604113: Factor the polynomial x²-81 \n" ); document.write( "
Algebra.Com's Answer #380948 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
Use the difference of two squares identity\r
\n" ); document.write( "\n" ); document.write( "x^2-(9)^2\r
\n" ); document.write( "\n" ); document.write( "(x+9)(x-9)
\n" ); document.write( "
\n" );