document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=250391>Question 250391</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=220y%2B60y%5E2-225 ALIGN=MIDDLE  ALT=\"220y%2B60y%5E2-225\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Factor completely. show steps. if polynomial is prime, state this.\r<BR>\n" );
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document.write( "I tried to do this but i don't understand how its done. My first attempt I thought it was prime but my teacher said it was wrong and it could be factored. Could you please help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #182313 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=182313\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=220y%2B60y%5E2-225 ALIGN=MIDDLE  ALT=\"220y%2B60y%5E2-225\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The factor of 5 is fairly obvious.<BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2A%2844y%2B12y%5E2-45%29 ALIGN=MIDDLE  ALT=\"5%2A%2844y%2B12y%5E2-45%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Put it in descending order<BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2A%2812y%5E2+%2B+44y+-+45%29 ALIGN=MIDDLE  ALT=\"5%2A%2812y%5E2+%2B+44y+-+45%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now it gets harder. Since the -45 is negative, the 2 signs are different.<BR>\n" );
document.write( "12 can be 1*12, 2*6 or 3*4<BR>\n" );
document.write( "45 can be 1*45, 3*15 or 5*9<BR>\n" );
document.write( "It's a trial and error thing to find a combination that gives +44y<BR>\n" );
document.write( "(3y + ??)*(4y + ??)<BR>\n" );
document.write( "(3y + 5)*(4y - 9)  no good<BR>\n" );
document.write( "(3y + 3)*(4y - 15) no good<BR>\n" );
document.write( "(3y + 1)*(4y - 45) no good<BR>\n" );
document.write( "(2y + 5)*(6y - 9) no good<BR>\n" );
document.write( "(2y + 9)*(6y - 5) works<BR>\n" );
document.write( "--> 5(2y+9)*(6y-5)<BR>\n" );
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document.write( "Do you know the quadratic equation?  That's a better way to do these.<BR>\n" );
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