Question: Please help me with this problem. Review Preview 7-9 Find the regions where each of the following functions is increasing, decreasing, concave up, and concave

Please help me with this problem.

Review Preview 7-9 Find the regions where each of the following functions is increasing, decreasing, concave up, and concave down. The points of inflection are included on the graph of f(x) to assist with concavity. E b . 2+3x2 if x50 2-12 if x>0
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