document.write( "Question 191257: Find the product.\r
\n" ); document.write( "\n" ); document.write( "(r+7)(r-7)
\n" ); document.write( "

Algebra.Com's Answer #143555 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
\"%28r%2B7%29%28r-7%29=r%5E2-7r%2B7r-49=r%5E2-49\" \n" ); document.write( "
\n" );