document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=145728>Question 145728</A>: <I><SPAN STYLE=\"word-break: break-all;\"> HOW DO U NO WHEN TO ADD OR SUBTRACT IN A PROMBLEM!!!!!!!\r<BR>\n" );
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document.write( "(1a3 +4a2 -7)+ (3a3 -2a2 +1)\r<BR>\n" );
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document.write( "how do u no to add or subtract the +4a2 -2a2 i no u 2a2 but how do u no what to do? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #106363 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=106363\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> HOW DO U NO WHEN TO ADD OR SUBTRACT IN A PROMBLEM!!!!!!! \r<BR>\n" );
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document.write( "(1a3 +4a2 -7)+ (3a3 -2a2 +1) <BR>\n" );
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document.write( "Rewrite as :<BR>\n" );
document.write( "a^3 + 4a^2 - 7 + (3a^3 - 2a^2 + 1)<BR>\n" );
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document.write( "Combine \"like\" terms:\r<BR>\n" );
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document.write( "a^3 + 3a^3 + 4a^2-2a^2 -7+1\r<BR>\n" );
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document.write( "Simplify:<BR>\n" );
document.write( "4a^3 + 2a^2 -6<BR>\n" );
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document.write( "If you are getting confused with these problems I suggest you<BR>\n" );
document.write( "review the rules for adding and subtracting signed numbers.<BR>\n" );
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document.write( "Since different texts use different rules I don't think it <BR>\n" );
document.write( "would help you if I gave you the rules I follow.  It would<BR>\n" );
document.write( "be better for you that you follow the rules in your text.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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