Algebraic expressions and Identities In Odia || 9th Class Mathematics Chapter-3 Exercise-3 (C) Odia

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#EXERCISE3C #CLASS9 #MATHEMATICS #ODIAMEDIUM

Some Standard Algebraic Identities list are given below:
Identity I: (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.
Identity V: (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.
Identity VI: (a + b)3 = a3 + b3 + 3ab (a + b)

The standard algebraic identities are:
(a + b)2 = a2 + 2ab + b. ...
(a – b)2 = a2 – 2ab + b. ...
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)
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