document.write( "Question 721666: Given functions f and g, determine the domain of f+g, f(x)=4x/x-8, g(x)=5/x+2 \n" ); document.write( "
Algebra.Com's Answer #442460 by nerdybill(7384)\"\" \"About 
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domain of f+g, f(x)=4x/x-8, g(x)=5/x+2
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\n" ); document.write( "It's all real numbers except if the denominators go to zero.
\n" ); document.write( "So, the exceptions are:
\n" ); document.write( "x-8=0
\n" ); document.write( "x = 8
\n" ); document.write( "and
\n" ); document.write( "x+2=0
\n" ); document.write( "x = -2
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\n" ); document.write( "Domain (in interval notation):
\n" ); document.write( "(-oo, -2) U (-2, 8) U (8, oo)
\n" ); document.write( "where oo stands for infinity
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