Post a New Question

algebra 2

posted by .

Find the set of all integers, n, for which the fraction

20/(10-n*n) is an integer

I used n*n for n squared

I figured that 10-n*n must be a factor of 20 and the only answer that ended up working was +-3, is this right?

  • algebra 2 -

    20/(10 -n^2) must be 20, 10, 5, 4 , 2 or 1, with n an integer.
    n can only be +/- 3 or 0.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question