Question

are the critical numbers of 4x^3-42x^2+5
0 and 3?

Answer 1

Back to basic calculus. The method is the same:
First find the derivative of the function.
Second make it equal to 0.
Third solve the equation.
In this case you will get 2 solutions, and that is your solution.

Answer 2

The solutions will be 0,7

Answer 3

@Andras thats not one of the answer choices... i got that the first time too.

Answer 4

You are clever than :) Trust your brain