Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The trick here is to rewrite y - x as - (x - y) so there will be a common factor (x - y) in the denominator.
Date Posted:
3 years ago