document.write( "Question 736540: How do you solve
\n" ); document.write( "x^-1 - x^-2 = 3/4\r
\n" ); document.write( "\n" ); document.write( "I tried the u substitution but did not get the correct answer. I keep getting -1/2 plus or minus i radical 2 over two\r
\n" ); document.write( "\n" ); document.write( "But the answer I need to get to is -2,2/3\r
\n" ); document.write( "\n" ); document.write( "Please help!
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Algebra.Com's Answer #449884 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
EDIT(small arithmetic mistake correction):\r
\n" ); document.write( "\n" ); document.write( "Realize your equation is the same as \"1%2Fx%2B1%2F%28x%5E2%29=3%2F4\". LCD is \"4x%5E2\", so multiply left and right members by \"4x%5E2\". You should obtain this:\r
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\n" ); document.write( "\n" ); document.write( "\"4x-4=3x%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "If you have that within your solution steps, you were doing well up to such point.\r
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\n" ); document.write( "\n" ); document.write( "Simplifies further to \"3x%5E2-4x%2B4=0\",
\n" ); document.write( "factorable into ---No. NOT factorable.
\n" ); document.write( "Use formula for solution to a quadratic equation. It will simplify to
\n" ); document.write( "\"highlight%28x=2%2F3-i%282%2F3%29sqrt%282%29%29\" or \"highlight%28x=2%2F3%2Bi%282%2F3%29sqrt%282%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "The expected -2 or 2/3 is incorrect.
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