# Is #f(x)=(x+3)^3-4x^2-2x # increasing or decreasing at #x=0 #?

##### 1 Answer

Jan 27, 2016

You have to find the derivative and check its sign at

It's increasing.

#### Explanation:

At

Since

Jan 27, 2016

You have to find the derivative and check its sign at

It's increasing.

At

Since

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