document.write( "Question 1128761: (x-1/x)=5 ,then what is the value of (x^4+1/x^4)=? \n" ); document.write( "

Algebra.Com's Answer #745266 by ikleyn(52802) $\"\"$ $\"About$

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document.write( "If  \r\n" );
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document.write( " = 5,                     (1)\r\n" );
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document.write( "then after squaring both sides\r\n" );
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document.write( " -  +  = 25,\r\n" );
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document.write( " - 2 +  = 25,\r\n" );
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document.write( " +  = 25 + 2 = 27.       (2)\r\n" );
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document.write( "Now square (2) again (both sides). You will get\r\n" );
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document.write( " +  +  = \r\n" );
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document.write( " +  = \r\n" );
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document.write( " +  = 727.     ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar solved problems, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO evaluate expressions involving $\"%28x+%2B+1%2Fx%29\"$ , $\"%28x%5E2%2B1%2Fx%5E2%29\"$ and $\"%28x%5E3%2B1%2Fx%5E3%29\"$ \r
\n" ); document.write( "\n" ); document.write( "    - Advanced lesson on evaluating expressions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Evaluation, substitution\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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