Question

what are the four identities of mathematics​

Answer 1

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• Identity I :- (a+b)2 = a2+2ab+b2
• Identity II :- (a-b)2 = a2- 2ab+b2
• Identity III :-a2-b2= (a+b) (a-b)
• Identity IV :-(x+a) (x+b) = x2+(a+b) x+ab

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Answer 2

Answer:

• Identity I :- (a+b)2 = a2+2ab+b2
• Identity II :- (a-b)2 = a2- 2ab+b2
• Identity III :-a2-b2= (a+b) (a-b)
• Identity IV :-(x+a) (x+b) = x2+(a+b) x+ab