Advertisements
Advertisements
Question
Expand : ( x - 2y + 2 )2
Sum
Advertisements
Solution
( x - 2y + 2 )2 = x2 + (2y)2 + (2)2 - 2(x)(2y) - 2(2y)(2) + 2(2)(x)
= x2 + 4y2 + 4 - 4xy - 8y + 4x
shaalaa.com
Expansion of Formula
Is there an error in this question or solution?
