using suitable identity to get the product of (7a-9b)
Answers
Answered by
0
(7a-9b) (7a-9b) =(7a-9b)square
=(7a)square-2(7a)(9b)+
(9b)square{(a-b)square=asquare-2ab+b2}
=49a2-126ab+81b2
Similar questions
English,
2 months ago
Chemistry,
5 months ago
History,
10 months ago
India Languages,
10 months ago
Biology,
10 months ago