50g

My calc. simply doesn't simplify the expressions when one of them has a constant but forces to switch to approximate mode (It does simplify the expressions as long as they don't have constants.)  In this sense it doesn't perform the example given in Chap.5 pages 5-2, 5-3 the way it is supposed to as one of the expressions has number Pi.
am i missing something or  can we  claim that the result of that example can't be obtained as shown in the guide???
can someone also try to verify that example?

if i'm missing something i'll have to hard-reset my calc. to return factory settings!!!
thanx