document.write( "Question 1159012: If f(x)=(2x-1)(2x+1)-(x-1),find f(n+1) in its simplest form
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Algebra.Com's Answer #782018 by Amily_2190(27)\"\" \"About 
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f(n+1)=(2(n+1)-1)(2(n+1)+1)-((n+1)-1)
\n" ); document.write( "=(2n+2-1)(2n+2+1)-(n)
\n" ); document.write( "=(2n+1)(2n+3)-n
\n" ); document.write( "Use FOIL
\n" ); document.write( "=4n^2+6n+2n+3-n
\n" ); document.write( "=\"4n%5E2%2B7n%2B3\" \n" ); document.write( "
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