document.write( "Question 1016408: Find f ’’(x) if \r
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document.write( " f(x) = 9 x^3 - 1 x^4 + 9\r
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document.write( "and evaluate f ’’(1). (Keep 2 decimal places) \n" );
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Algebra.Com's Answer #632847 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find f ’’(x) if \r \n" ); document.write( "\n" ); document.write( " f(x) = 9 x^3 - 1 x^4 + 9\r \n" ); document.write( "\n" ); document.write( "and evaluate f ’’(1) \n" ); document.write( "===================== \n" ); document.write( "f'(x) = 27x^2 - 4x^3 \n" ); document.write( "f\"(x) = 54x - 12x^2 \n" ); document.write( "--- \n" ); document.write( "f\"(1) = 54 - 12 = 42 \n" ); document.write( " |