Question

What is the local minimum value of the function f(x)=x^3 (x+4)

Answer 1

Step-by-step explanation:

Correct option is

A

3

Fact: Absolute value of any number will always non-negative

⇒∣x∣≥0∀x∈R

Therefore f(x)=3+∣x∣≥3+0=3

Hence minimum value of the given function is 3