document.write( "Question 277511: The question is:\r
\n" ); document.write( "\n" ); document.write( "simplify 4 + x^-1
\n" ); document.write( " ________
\n" ); document.write( " 64+ x^-3\r
\n" ); document.write( "\n" ); document.write( "I factored the terms and made the exponents positive.\r
\n" ); document.write( "\n" ); document.write( "4+x^1
\n" ); document.write( "______
\n" ); document.write( "(4+x)(4-x)(4-x)\r
\n" ); document.write( "\n" ); document.write( "x^3 minus x = x^2 which is the numerator of the answer.\r
\n" ); document.write( "\n" ); document.write( "(4+x) is cross cancelled leaving the denominator of the answer to be 16.\r
\n" ); document.write( "\n" ); document.write( "I think the answer is \r
\n" ); document.write( "\n" ); document.write( "X^2
\n" ); document.write( "___
\n" ); document.write( "16\r
\n" ); document.write( "\n" ); document.write( "Any help is welcome. Thank you.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #202029 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
simplify 4 + x^-1
\n" ); document.write( "________
\n" ); document.write( "64+ x^-3
\n" ); document.write( "------------
\n" ); document.write( "I factored the terms and made the exponents positive.
\n" ); document.write( "4+x^1
\n" ); document.write( "______
\n" ); document.write( "(4+x)(4-x)(4-x)
\n" ); document.write( "x^3 minus x = x^2 which is the numerator of the answer.
\n" ); document.write( "(4+x) is cross cancelled leaving the denominator of the answer to be 16.
\n" ); document.write( "I think the answer is
\n" ); document.write( "X^2
\n" ); document.write( "___
\n" ); document.write( "16
\n" ); document.write( "---------
\n" ); document.write( "*********************
\n" ); document.write( "x^-1 = 1/x
\n" ); document.write( "x^-3 = 1/x^3
\n" ); document.write( "\"64%2Bx%5E-3+=+4%5E3+-+%281%2Fx%29%5E3\"
\n" ); document.write( "= \"%284+%2B+%281%2Fx%29%29%2A%2816+-+%281%2Fx%29+%2B+%281%2Fx%29%5E2%29\"
\n" ); document.write( "The numerator is the 1st term, so cancel those.
\n" ); document.write( "--> \"1%2F%2816+-+%281%2Fx%29+%2B+%281%2Fx%29%5E2%29\"
\n" ); document.write( "or \"1%2F%2816+-+x%5E-1+%2B+x%5E-2%29\"
\n" ); document.write( "---------------------------------
\n" ); document.write( "I factored the terms and made the exponents positive. *** Changing the exponents is not allowed.\r
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\n" ); document.write( "\n" ); document.write( "
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