SOLUTION: Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=x^4/4 +x^3 +x^2

SOLUTION: Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=x^4/4 +x^3 +x^2

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Question 1155972: Find the intervals on which f is increasing and the intervals on which it is decreasing.
f(x)=x^4/4 +x^3 +x^2
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

find first derivative:
′
′
′
If ′, then is on the interval:

or

or

is on the intervals:
(,) U (,)

and is decreasing on the interval:
(,) U (,)

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