A) Let x be the number of mathematics club members
b) Each member will have to share
The amount shared with 25 more members is 50 less than the amount shared by the original number of members.
² +1,250x = 625,000
(Some would say that the standard form is 50x² +1,250x - 625,000 = 0 , they're basically the same thing, it just depends on what your teacher taught you)