I dont understand my ans is wrong

Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

secondary 2 | Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

secondary 2 Maths Singapore

I dont understand my ans is wrong

Date Posted: 3 years ago

Chua Yi Da

3 years ago

(3x^2-6xy-xy+2y^2)- (x^2 -y^2)
=3x^2-7xy +2y^2 -x^2 +y^2
=2x^2-7xy+3y^2

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Check your signs.

Date Posted: 3 years ago