document.write( "Question 468428: I need to determine the domain of the given function\r
\n" ); document.write( "\n" ); document.write( "f(x) = 4x divided by x^ -x -12
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Algebra.Com's Answer #321429 by lwsshak3(11628)\"\" \"About 
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I need to determine the domain of the given function
\n" ); document.write( "f(x) = 4x divided by x^ -x -12
\n" ); document.write( "...
\n" ); document.write( "f(x)=4x/(x^2-x-12)
\n" ); document.write( "To determine domain, set denominator = 0, then solve for x
\n" ); document.write( "x^2-x-12=0\r
\n" ); document.write( "\n" ); document.write( "(x-4)(x+3)=0
\n" ); document.write( "x-4=0
\n" ); document.write( "or
\n" ); document.write( "x=-3
\n" ); document.write( "Domain:
\n" ); document.write( "x≠4 or x≠-3
\n" ); document.write( "in interval notation.
\n" ); document.write( "(-∞,-3) U (-3,4) U (4,∞)
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