<prompt> Find the derivative of fx x2 - 4x 6.  <response>: The derivative of a function gives us the rate of change of the function at any point. We can find the derivative of a polynomial function like fx x2 - 4x 6 using the power rule. According to the power rule, if fx xn, then fx nxn-1, where fx represents the derivative of fx.Using the power rule, we can find the derivative of each term in fx x2 - 4x 6 separately:- The derivative of x2 is 2x2-1 2x.- The derivative of -4x is -4x1-1 -4.- The derivative of the constant term 6 is 0. Thus, the derivative of fx x2 - 4x 6 is:fx 2x - 4. 