Question

(3a+2b)(3a-2b) Simply The following expression by using sutiable identity​

Answer 1

Answer:

= (3a + 2b) (3a - 2b)

= (3a) ² - (2b) ²

= 9a² - 4b²

Answer 2

Answer:

(3a+2b)(3a-2b) can be written in the form of

(a+b)(a-b) where 3a = 'a' and 2b = 'b'

we know

(a+b)(a-b) = a²-b²

therefore, (3a+2b)(3a-2b) = (3a)²-(2b)²

= 9a²-4b²

hope it helped :)