document.write( "Question 1162538: Please help me with this question. Thank you!
\n" ); document.write( "a) Given the functions f(x) = x + 2 and g(x) = 3^x, determine an equation for (f ∘ g)(x) and (g ∘ f)(x).
\n" ); document.write( "b) Determine f(g(3)) and g(f(3)).
\n" ); document.write( "c) Determine all values of x for which f(g(x)) = g(f(x)).
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Algebra.Com's Answer #786350 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29+=+x+%2B+2+\"and
\n" ); document.write( "\"g%28x%29+=+3%5Ex\" \r
\n" ); document.write( "\n" ); document.write( "determine an equation for: \r
\n" ); document.write( "\n" ); document.write( "a.\r
\n" ); document.write( "\n" ); document.write( "(\"f\"\"g\")(\"x\") =\"f%28g%28x%29%29=f%283%5Ex%29=3%5Ex%2B2\"\r
\n" ); document.write( "\n" ); document.write( "and
\n" ); document.write( "(\"g+\"\"f\")(\"x\")=\"g%28f%28x%29%29=g%28x%2B2%29=3%5E%28x%2B2%29\"\r
\n" ); document.write( "\n" ); document.write( "b. Determine \"f%28g%283%29%29\" and \"g%28f%283%29%29\". \r
\n" ); document.write( "\n" ); document.write( "first \"g%283%29+=+3%5E3=27\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28g%283%29%29=x%2B2=27%2B2=29\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%283%29+=+x+%2B+2=3%2B2=5+\"\r
\n" ); document.write( "\n" ); document.write( "\"g%28f%283%29%29=3%5Ex=3%5E5=243\"\r
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\n" ); document.write( "\n" ); document.write( "c) Determine all values of \"x\" for which \"f%28g%28x%29%29+=+g%28f%28x%29%29\".\r
\n" ); document.write( "\n" ); document.write( "\"x%2B2=3%5Ex\"....evidently, one solution is \"x=1\"\r
\n" ); document.write( "\n" ); document.write( "verify:\r
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\n" ); document.write( "\n" ); document.write( "\"1%2B2=3%5E1\"
\n" ); document.write( "\"3=3\"->true\r
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