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)![]() ![]() You can put this solution on YOUR website! domain of f+g, f(x)=4x/x-8, g(x)=5/x+2 \n" ); document.write( ". \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 \n" ); document.write( ". \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 \n" ); document.write( " |