Posted by **Terri** on Friday, April 11, 2008 at 4:10pm.

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 -
**drwls**, Friday, April 11, 2008 at 6:24pm
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

## Related Questions

- Algebra - The sum of two consecutive even integers is 118. A. Define a variable ...
- Algebra - The sum of two consecutive odd integers is 56. A. Define a variable ...
- Algebra - The larger of two positive integers is five more than twice the ...
- Math11U - A Pythagorean Triple is a set of integers that satisfy the Pythagorean...
- PROGRAMMING - 1. Make a C program that will input two integers and then to enter...
- Math - The average of a set of five different positive integers is 360. The two ...
- Math - The least integer of a set of consecutive integers is -25 if the sum of ...
- Math - The least integer of a set of consecutive integers is -48. if the sum of ...
- Math - 1. In an ordered set of 4 consecutive odd integers, the sum of 3 times ...
- algebra 1 - The sum of two integers is greater than 12. One integer is ten less ...