Find all the values of x where the tangent line is horizontal. f(x)=2x3+39x2+252x+9 x= (Simplify your answer. Use a comm
Posted: Thu Jul 14, 2022 4:42 pm
Find all the values of x where the tangent line is horizontal. f(x)=2x3+39x2+252x+9 x= (Simplify your answer. Use a comma to separate answers as needed.)