document.write( "Question 1193659: Find the derivative using four step rule:
\n" ); document.write( "f(x)=12x^3+6x^2+9x/3x^2
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Algebra.Com's Answer #825749 by ikleyn(52788)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "First step is to reduce common factor (3x) in the numerator and the denominator.\r
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\n" ); document.write( "\n" ); document.write( "Second step is to apply the standard formula for the derivative of fraction of two functions.\r
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