Question

The HCF of (x - 1) (x² - 4) and (x² - 1) (x + 2) is​

Answer 1

Answer:

x+2

Step-by-step explanation:

(x - 1) (x² - 4) can be simplied further as (x - 1)(x-2)(x+2)

and  (x² - 1) (x + 2) can be simplified as (x+1)(x-1)(x+2)

so x+2 is the highest common factor .