Question

write explanation formulae of{ (a+b)² ,(a-b)² ,a²-b²,(a+b)³,(a-b)³,a³- b³,a³+b³}​

Answer 1

Answer:

here,

1.(a+b)²=(a²+2ab+b²) or (a+b)²-2ab

2.(a-b)²=(a²-2ab+b²)

3.a²-b²=(a-b)(a+b)

4.(a+b)³=a³+b³+3ab(a+b)

5.(a-b)³=a³-b³-3ab(a-b)

6.a³-b³=(a-b)(a²+ab+b²)

7.a³+b³=(a+b)(a²-ab+b²)

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Answer 2

I am writing explanation also with answer. Hope you got it.

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