formula

Original: f (x) = a * x n

Derivative: f' (x) = a * n * x (n- 1)

When f'(x)=0, it is an extreme value.

(There are still some formulas to be used before writing. )

The answer to this question (standard): let y=f(x), then f' (x) = 2 * a * x+b.

When f'(x)=0, there is an extreme value. (find x 1, x2. Then list it and draw it. Explain that x 1, x2 is the maximum and which is the minimum).

"*" is a multiplication symbol. Don't mispronounce it. I don't know how to type it out and publish it. It's easy to mispronounce it.

Ask again if you don't understand.

But I don't have to go. Hmm. How interesting