1. A number x is 3 larger than its reciprocal. What is the value of (x - 1/x)^4 ?
2. How many polynomials of the form x^2 + mx + n are there with positive integer roots and n=28?
you can answer then in any order! thank you!
1. (x - 1/x)^4 = 18.
2. There are 5 polynomials of this form.