document.write( "Question 1015893: Can you help me with this problem please\r
\n" ); document.write( "\n" ); document.write( "f(x)=9x+7; g(x)=5x and solve for (f o f)(x) and (g o g)(x)\r
\n" ); document.write( "\n" ); document.write( "Thank you so much for helping me with this problem.
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Algebra.Com's Answer #632284 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
(fo f)(x)=
\n" ); document.write( "9(9x+7)+7, substituting f(x) in for x
\n" ); document.write( "=81x+70
\n" ); document.write( "(g o g)(x)=5*(5x)=25x.
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