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

1 thought on “Q.3 Match the correct pair.<br />1) (a – b)2 – a3 + b3 + 3a2b + 3ab<br />2) (a + b)2 – x2 + (a + b)x + ab<br />3) a – b – a² + 2ab”

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

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