Question

What is the least common denominator for these two rational expressions n^4/n^2+2n+1,7/n^2-8n-9

Answer 1

Explanation:

n²+2n+1 = (n+1)(n+1)

n²-8n-9 = (n+1)(n-9)

the least common denominator for these two rational expressions is :

(n+1)(n-9)