Question

use suitable identities to find the following products
1) (3x + 2)(3x - 2)
2) (1+x) (1 + x)​

Answer 1

Answer:

1) (9x^2-4) 2) 1+2x+x^2

Step-by-step explanation:

1) (a+b)(a-b) = a^2 - b^2

2) (a+b)(a+b) = (a+b)^2

(a+b)^2 = a^2 + b^2+2ab

Answer 2

Answer:

Step-by-step explanation:

1. (3x+2)(3x-2)

Identity used :- a^2 - b^2 = (a+b)(a-b)

(3x)^2 - (2)^2

9x^2 - 4

2. (1+X)(1+X)

Identity used :- (a+b)^2 = a^2 + b^2 + 2ab

(1)^2 + (X)^2 + 2(1)(x)

1 + x^2 + 2x