Advertisements
Advertisements
Question
Expand: (p + q + 3)2
Sum
Solution
(p + q + 3)2
= p2 + q2 + (3)2 + 2 × p × q + 2 × q × 3 + 2 × p × 3
= p2 + q2 + 9 + 2pq + 6q + 6p
= p2 + q2 + 2pq + 6q + 6p + 9.
shaalaa.com
Is there an error in this question or solution?
