document.write( "Question 260502: For the functions f(x) and g(x), determine the domain of (fg)(x) (the product of f and g). f(x)=2/x-12, g(x)=-6x-5. \r
\n" ); document.write( "\n" ); document.write( "a) x is a real number.
\n" ); document.write( "b) x is a real number and x is not equal to 5.
\n" ); document.write( "c) x is a real number and x is not equal to -12.
\n" ); document.write( "d) x is a real number and x is not equal to 12.\r
\n" ); document.write( "\n" ); document.write( "If my understanding is correct, the answer would be option a. Is this correct? Please explain.
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Algebra.Com's Answer #191883 by drk(1908)\"\" \"About 
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f(x)=2/(x-12), g(x)=-6x-5.
\n" ); document.write( "\"%28fg%29%28x%29+=+%28-12x-10%29%2F%28x-12%29\"
\n" ); document.write( "Since there is an x in the denominator we set it = 0 and solve.
\n" ); document.write( "x -12 = 0
\n" ); document.write( "x = 12
\n" ); document.write( "This tells us that our domain is all reals EXCEPT 12
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\n" ); document.write( "based on the answers, it is [D]
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