document.write( "Question 1139251: Find the domain of the function
\n" ); document.write( "f(x)= 2x/x^2-4
\n" ); document.write( "Need this explained step by step line by line
\n" ); document.write( "

Algebra.Com's Answer #757036 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
Not much sense writing a function that way. Meaning would be better shown as f(x)=2x/(x^2-4)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"f%28x%29=2x%2F%28x%5E2-4%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "DOMAIN: What numbers can x be? What numbers are not allowed?\r
\n" ); document.write( "\n" ); document.write( "\"%282x%29%2F%28%28x-2%29%28x%2B2%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Numerator will allow all real numbers but denominator must never be 0; so this means \"x%3C%3E2\" and \"x%3C%3E-2\".
\n" ); document.write( "
\n" );