document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=613354>Question 613354</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find all values of x to the nearest degree that satisfy the equation 3cos2x + cosx + 2 = 0 if  0o < x < 360o. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #386001 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=386001\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all values of x to the nearest degree that satisfy the equation 3cos2x + cosx + 2 = 0 if  0 < x < 360<BR>\n" );
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document.write( "If it's <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3cos%5E2%28x%29 ALIGN=MIDDLE  ALT=\"3cos%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and not 3cos(2x),<BR>\n" );
document.write( "Sub u for cos(x)<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3u%5E2+%2B+u+%2B+2+=+0 ALIGN=MIDDLE  ALT=\"3u%5E2+%2B+u+%2B+2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cos(x) = u = complex numbers<BR>\n" );
document.write( "I doubt you want the arccos of complex numbers.<BR>\n" );
document.write( "Clarify the first term with parentheses.<BR>\n" );
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