write down the ALGEBRAIC IDENTITIES.
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IDENTITIE (1)
(a+b)^2 = a^2 + 2ab + b^2
IDENTITIE (2)
(a – b)^2 = a^2 – 2ab + b^2
IDENTITIE (3)
a^2 + b^2 = (a + b)(a – b)
IDENTITIE (4)
(x + a)(x + b) = x^2 + (a + b) x + ad
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Algebraic Identities :-
- (a+b)² = a² + b² + 2ab
- (a-b)² = a² + b² - 2ab
- a² - b² = (a+b) (a-b)
- (x+a) (x+b) = x² + (a+b)x + ab
- (a+b+c)² = a² + b² + c² + 2ab + 2bc + 2ca
- (a+b)³ = a³ + b³ + 3ab (a+b)
- (a-b)³ = a³ - b³ - 3ab (a-b)
- a³+b³+c³-3abc = (a+b+c) (a²+b²+c²- ab-bc-ca)
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