hello, i have an hp 50 and an hp prime

i selected step by step on the 50g in the CAS menu

now i want it to solve limits step by step, for instance:

lim (x² -1)/(x - 1)

1

would evolute to:

lim ( x + 1 ) ( x - 1) / ( x -1 ) = 2

1

i know this example is simple but i need to solve some complicated limits and i want to know how to do it. but i cant make step by step work.

First i use EQW to write the limit then click eval and the answer is given imediatelly

how do i make it to work? thanks in advance

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