Ann's answer to Cheryl Ong's Secondary 2 Maths question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
take out (a+b), it is (a+b)(x+y-(y+z))=(a+b)(x-z)
Date Posted:
6 years ago
Thanks
360 Tutoring Program