Use a suitable identity to get each of the following products.(7a - 9b) (7a - 9b)
Use a suitable identity to get each of the following products.
(7a - 9b) (7a - 9b)
Pawan Prajapati , 4 Years ago
Grade 12
8 grade maths> Use a suitable identity to get each of th...
1 AnswersHarshit Singh
Last Activity: 4 Years ago
Dear Student
(7a-9b)(7a-9b)= (7a-9b)^2
= 49a^2- 126ab + 81b^2
Using (a-b)^2= a^2+ b^2- 2ab
Thanks
(7a-9b)(7a-9b)= (7a-9b)^2
= 49a^2- 126ab + 81b^2
Using (a-b)^2= a^2+ b^2- 2ab
Thanks
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