Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 2 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Given that x+y=6 and xy=5, find the value of x²+y², thankyou
Date Posted: 4 years ago
Views: 262
start with:
(x+y)² which is equal to
x² + 2xy + y²
(x+y)² which is equal to
x² + 2xy + y²
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted:
4 years ago
Thank you
These tricks are very important in this chapter. Even though a2 + b2 is not the same as (a + b)2, they are related by the extra 2ab term.
360 Tutoring Program