document.write( "Question 1107039: Solve for x. x!=1 (two answers are required)
\n" ); document.write( "According to math_tutor (887), we can solve equations with factorials with the below method:
\n" ); document.write( "\"There is no easy inverse function for the factorial (gamma function).
\n" ); document.write( "However, given x! = (a value) you can start by dividing by 2, then 3, then 4, etc. When your division produces a value of 1 then that last division is the value of x.\"
\n" ); document.write( "Using this method, I can solve the equation (but just one value):
\n" ); document.write( "x!=1
\n" ); document.write( "x!/1=1/1
\n" ); document.write( "1=1
\n" ); document.write( "Therefore, x=1
\n" ); document.write( "BUT is there any way (a process) that can solve x=0? \n" ); document.write( "
Algebra.Com's Answer #722041 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "0! = 1! = 1\r\n" );
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document.write( "The idea of the factorial (in simple terms) is used to \r\n" );
document.write( "compute the number of permutations of arranging a set \r\n" );
document.write( "of n numbers. It can be said that an empty set can only \r\n" );
document.write( "be ordered one way, so 0! = 1\r\n" );
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document.write( "That's informal.  Moe formally, we can do this:\r\n" );
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document.write( "By definition of factorial,\r\n" );
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document.write( "n! = n•(n-1)! where n > 0\r\n" );
document.write( "1! = 1•(1-1)!\r\n" );
document.write( " 1 = 1•0!\r\n" );
document.write( " 1 = 0!\r\n" );
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document.write( "Edwin
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