Questions: The function f(x)=2x^3-36x^2+210x-7 has two critical numbers.
The smaller one is x= and the larger one is x=
Transcript text: The function $f(x)=2 x^{3}-36 x^{2}+210 x-7$ has two critical numbers.
The smaller one is $x=$ $\square$ and the larger one is $x=$ $\square$
Solution
Solution Steps
Step 1: Find the Derivative
To find the critical numbers of the function \( f(x) = 2x^3 - 36x^2 + 210x - 7 \), we first calculate its derivative:
\[
f'(x) = 6x^2 - 72x + 210
\]
Step 2: Set the Derivative to Zero
Next, we set the derivative equal to zero to find the critical points:
\[
6x^2 - 72x + 210 = 0
\]
Step 3: Solve for Critical Points
By solving the quadratic equation, we find the critical points:
\[
x = 5 \quad \text{and} \quad x = 7
\]
Final Answer
The smaller critical number is \( \boxed{x = 5} \) and the larger critical number is \( \boxed{x = 7} \).