So far I did this:

Critical Point :0

Increasing :(0,INFINITY)

Decreasing :(-INFINITY,0)

Local Maximum:1/4

Local Minimum:0

Inflection Points:x = 1, x = -1

Concave Up:(-1,INFINITY)

Concave Down :(-INFINITY,1)

I cannot able to findCUandCDandlocal maximumcorrectly.

Plz help me