Try another version of this question Get help: Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Let ` f(x) = \ln [ x^ (4) (x + 9)^ (7) (x^2 + 7)^ (7) ] `
` f'( x ) = `
Be sure your variables match those in the question `4/x +7/(x+9)+(14 x)/(x^2+7)`