document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173791>Question 173791</A>: <I><SPAN STYLE=\"word-break: break-all;\"> help me solve this problem please.\r<BR>\n" );
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document.write( "4a^2-2[3b-5b(b+4)] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128699 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=128699\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4a^2-2[3b-5b(b+4)]\r<BR>\n" );
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document.write( "the first step is to expand this -5b(b+4)=-5b^2-20b\r<BR>\n" );
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document.write( "4a^2-2[3b-5b^2-20b]\r<BR>\n" );
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document.write( "-2[3b-5b^2-20b]=-6b+10b^2+40b\r<BR>\n" );
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document.write( "4a^2-6b+10b^2+40b\r<BR>\n" );
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document.write( "Combine like terms and simplify\r<BR>\n" );
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document.write( "4a^2+34b+10b^2\r<BR>\n" );
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document.write( " </SPAN>\n" );
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