document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=59690>Question 59690</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0030336643/algebrahomeworkh>Intermediate Algebra Concepts and Graphs</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Can someone help?<BR>\n" );
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document.write( "Solve: 6t^4=-t^2+5\r<BR>\n" );
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document.write( "I keep getting t=radical 5/radical 6 and t=+or-I<BR>\n" );
document.write( "the answer in the back of the book is t=+or-radical30/6 and t=+or-I<BR>\n" );
document.write( "What am I doing wrong? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #40943 by </B><A HREF=/tutors/aboutme.mpl?userid=chitra><B>chitra(359)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chitra><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=40943\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The given expression is: \r<BR>\n" );
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document.write( "6t^4 = -t^2 + 5\r<BR>\n" );
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document.write( "Adding (t^2 - 5) on both sides of the given expression, we get: \r<BR>\n" );
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document.write( "6t^4 + t^2 - 5 = 0\r<BR>\n" );
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document.write( "Using the Method of Factorization, we get: \r<BR>\n" );
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document.write( "6t^4 + 6t^2 - 5t^2 - 5 = 0 \r<BR>\n" );
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document.write( "==> 6t^2(t^2 + 1) - 5(t^2 + 1) = 0\r<BR>\n" );
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document.write( "==> (6t^2 - 5)(t^2 + 1) = 0 \r<BR>\n" );
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document.write( "Thus, we get: \r<BR>\n" );
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document.write( "6t^2 - 5 = 0   and   t^2 + 1 = 0\r<BR>\n" );
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document.write( "==> t = + or - radical(5/6) \r<BR>\n" );
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document.write( "and t = + or - I \r<BR>\n" );
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document.write( "So, your answer is perfectly right!!\r<BR>\n" );
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