Question

Q.3 Match the correct pair.
1) (a - b)2 - a3 + b3 + 3a2b + 3ab
2) (a + b)2 - x2 + (a + b)x + ab
3) a - b - a² + 2ab + b2
4) (x + a)(x + b)-(a + b)(a - b)
5) (a + b)3 - a2 - 2ab + b2​

Answer 1

Answer

1. (a - b)2 -. a2 - 2ab + b2

2. (a + b)2 -. a² + 2ab + b2

3. a - b -. (a + b)(a - b)

4. (x + a)(x + b) -. x2 + (a + b)x + ab

5. (a + b)3 - a3 + b3 + 3a2b + 3ab

Answer 2

Step-by-step explanation:

match the pairs 1)(a+b)^ 2)(a-b)^ 3)(a+b)(a-b)