Hp 39gii integration fail

[lrdheat]

Side note...same function integrates fine away from 0.

Integrating 3*x^(2/3)-2*x from 1 to 2 gives correct .91464378706 11 digit answer in ~5 seconds.

Integrating same function written as 3*(3 root x)^2-2*x gives same answer in ~21 seconds.

Taking area under curve in plot app from 1 to 2 gives same correct 11 digit answer almost instantaneously!