document.write( "Question 1111454: Solve and check for extraneous solutions.
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Algebra.Com's Answer #726452 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "ln(x^4) = 5  <==== is equivalent to ====>\r\n" );
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document.write( "x^4 =        (1)\r\n" );
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document.write( "The only real solution to the original equation  is  x = .\r\n" );
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document.write( "The other three roots of the equation (1),\r\n" );
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document.write( "    x = ,  x = ,  x = \r\n" );
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document.write( "are extraneous for the original equation.\r\n" );
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