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JAMB 2011 · UTME · Q36

The derivative of (2x+1)(3x+1)(2x + 1)(3x + 1) is

Worked solution (try it first)
  1. Expand: (2x+1)(3x+1)=6x2+2x+3x+1(2x + 1)(3x + 1) = 6x^2 + 2x + 3x + 1
    =6x2+5x+1= 6x^2 + 5x + 1.
  2. Differentiate term by term: 12x+512x + 5, option D.

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