Limits and Derivatives

Limits and Derivatives

Question

Find the derivative of (2x+3)(5x2-7x+1)

Answer

Let             f(x) =   (2x+3)(5x2-7x+1)

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                                                                                                                          (Byn Product rule)

                             = (2x+3) (10x-7)+(5x-7x+1)(2)
                              
                             = 20x-14x + 30x -21 + 10x-14x + 2
                             = 30x2 + 2x - 19

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