If -4<m<8 and 1<n<2, what is the possible range of m-n?

My answer is -5<m-n<6, but, again, according to the book, it is -6<m-n<7. What's the solution?

Thank you!

- Sun Aug 12, 2012 9:47 am
- Forum: Beginning Algebra
- Topic: What is possible range of m-n, if -4<m<8 an 1<n<2?
- Replies:
**1** - Views:
**1832**

If -4<m<8 and 1<n<2, what is the possible range of m-n?

My answer is -5<m-n<6, but, again, according to the book, it is -6<m-n<7. What's the solution?

Thank you!

My answer is -5<m-n<6, but, again, according to the book, it is -6<m-n<7. What's the solution?

Thank you!

- Sun Aug 12, 2012 9:42 am
- Forum: Intermediate Algebra
- Topic: Quadratic equations: what are the roots of 4x^2-3x+9 = 0?
- Replies:
**1** - Views:
**1768**

What are the roots of 4x^2 - 3x + 9 = 0?