# calculus

posted by
**Ting** on
.

Let f (x) = x3 ��3x2 +5x+2. Find the open intervals on which f is concave up (down). Then determine the

x-coordinates of all inflection points of f .

1. f is concave up on the intervals

2. f is concave down on the intervals

3. The inflection points occur at x =