Safalta Safalta Exam Preparation Online

user image

Preeti Tripathi

Class 9th
Maths
2 years ago
Content Issue Not Relevent Obscene Threatening Wrong Information Other

Expand : (i) (y – √3)2 (ii) (x – 2y – 3z)2

1 Answer
user image

Abhishek Mishra

2 years ago

Solution: (i) (y – √3)2 = y2 -2 × y × √3 + (√3)2 = y2 – 2√3 y + 3 (x – 2y – 3z)2 = x2 + 1 – 2y)2 + (-3z)2 + 2 × x × (-2y) + 2 × (-2y) × (-3z) + 2 × (-3z) × x = x2 + 4y2 + 9z2 – 4xy + 12yz – 6zx

Recent Doubts

Close [x]
Download App for Live stream

Live stream is currently not available on web. Kindly download our app.

Cancel Download

Home

Search

My Course