document.write( "Question 1047322: The function f is defined by f(x)=3x^2+4x
\n" ); document.write( "Find f(4n)
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\n" ); document.write( " f(4n)=3(4n)^2+4(4n)
\n" ); document.write( "What I did is: 3((4n)(4n))+4(4n)
\n" ); document.write( " 3(16+4n+4n+n^2)+4(4n)
\n" ); document.write( " 48+12n+12n+3n^2+16n
\n" ); document.write( " 48+24n+3n^2+16n\r
\n" ); document.write( "\n" ); document.write( "But I also did this:12n^2+4(4n)
\n" ); document.write( " 12n^2+16n
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\n" ); document.write( "I am not sure which answer is correct. I believe what
\n" ); document.write( "confuses me is the question if whether I should factor out 3(4n)^2
\n" ); document.write( "For example: 3(4n)^2= 3((4n)(4n)) =3(16+4n+4n+n^2)
\n" ); document.write( "I know I should simplify but the exponent confuseso me.
\n" ); document.write( "Please help me solve the problem.
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Algebra.Com's Answer #662852 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "The function f is defined by f(x)=3x^2+4x
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document.write( "f(4n) =  =  = .\r\n" );
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