document.write( "Question 522216: Factor completely (trinomial)
\n" ); document.write( "-9xy^2+27y-3x^2y
\n" ); document.write( "I tried setting it up with descending variables, but can't get it to work.
\n" ); document.write( "-3x^2y-9xy^2+27=
\n" ); document.write( "-3y(x^2+3xy-9)=
\n" ); document.write( "-3y (x ) (x ) there aren't 2 numbers that multiply to make negative 9 and add to make a positive 3.
\n" ); document.write( "Thank you,
\n" ); document.write( "Brenda Floyd \n" ); document.write( "

Algebra.Com's Answer #346737 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "You did nothing wrong.  The final answer is -3y(x² + 3xy - 9)\r\n" );
document.write( "Not all trinomials are factorable (using integers).  It is\r\n" );
document.write( "important that students recognize the ones that are not factorable\r\n" );
document.write( "and not try to factor them.  So leave the answer as:\r\n" );
document.write( "\r\n" );
document.write( "-3y(x² + 3xy - 9)\r\n" );
document.write( "\r\n" );
document.write( "Some students, not you of course, would try to factor it and\r\n" );
document.write( "think the answer would be . \r\n" );
document.write( "\r\n" );
document.write( "Edwin

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