Grade 128 grade maths
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)
1 Answer
Harshit Singh
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
Other Related Questions on 8 grade maths
What is the value of $ 5 $ million dollars in Indian rupees given that one dollar is equal to $ 75 $ Indian rupees.
What is the value of $ 5 $ million dollars in Indian rupees given that one dollar is equal to $ 75 $ Indian rupees.
8 grade maths
Last Activity: 0 Years ago
How many perfect cubes can you find from 1 to 100? How many from -100 to 100?
How many perfect cubes can you find from 1 to 100? How many from -100 to 100?
8 grade maths
Last Activity: 1 Year ago