document.write( "Question 56925: I honestly have no idea how to answer this problem. It's not from a book, my teacher made it up.\r
\n" ); document.write( "\n" ); document.write( "f(x)=x+4
\n" ); document.write( "find (f(x))^2\r
\n" ); document.write( "\n" ); document.write( "I wrote down (x+4)^2 which equals x^2+16 just to have an answer. I'd rather have an example problem like this one so I could learn from that instead of just having a correct answer. Thank you!
\n" ); document.write( "

Algebra.Com's Answer #38668 by funmath(2933)\"\" \"About 
You can put this solution on YOUR website!
I honestly have no idea how to answer this problem. It's not from a book, my teacher made it up.\r
\n" ); document.write( "\n" ); document.write( "f(x)=x+4
\n" ); document.write( "find (f(x))^2
\n" ); document.write( "I'd rather have an example problem like this one so I could learn from that instead of just having a correct answer. Thank you!
\n" ); document.write( ":
\n" ); document.write( "Ok, here you go.
\n" ); document.write( "What if f(x)=x+5
\n" ); document.write( "Find \"%28f%28x%29%29%5E2\"
\n" ); document.write( "=\"%28x%2B5%29%5E2\" does not =\"x%5E2%2B25\", observe:
\n" ); document.write( "=\"%28x%2B5%29%28x%2B5%29\"
\n" ); document.write( "=\"x%28x%2B5%29%2B5%28x%2B5%29\"
\n" ); document.write( "=\"x%28x%29%2Bx%285%29%2B5%28x%29%2B5%285%29\"
\n" ); document.write( "=\"x%5E2%2B5x%2B5x%2B25\"
\n" ); document.write( "=\"x%5E2%2B10x%2B25\"
\n" ); document.write( "You are missing your middle term, because you didn't FOIL.
\n" ); document.write( "I hope you liked my example, I admire your ethics.
\n" ); document.write( "Happy Calculating!!!
\n" ); document.write( "funmath
\n" ); document.write( "
\n" );