#1: P times four equals four equals k is an element of zero, n minus one, n is an element of N four times three times plus bi equals c plus di if and only if a equals c raised to the power of b plus x rtwo two times one equals equals
#2: P times four equals four equals k is an element of zero, n minus one, n is an element of N four times three times plus bi equals c plus di if and only if a equals c raised to the power of b plus x rtwo two times one equals