document.write( "Question 1073217: Please solve the following problem by using factoring and the zero-product property .\r
\n" ); document.write( "\n" ); document.write( " 9r^2-30r+21=-4\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "Thank you.
\n" ); document.write( "

Algebra.Com's Answer #688049 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
\"9r%5E2-30r%2B21%2B4=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"9r%5E2-30r%2B25=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%283r-5%29%283r-5%29=0\"\r
\n" ); document.write( "\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "
\n" );