All the formulas which is used in polynomial chapter of class 10th.
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Polynomial Identities
- (x + y)2= x2 + 2xy + y2
- (x – y)2= x2 – 2xy + y2
- x2– y2 = (x + y)(x – y)
- (x + a)(x + b) = x2+ (a + b)x + ab.
- (x + y + z)2= x2 + y2 + c2 + 2xy + 2yz + 2zx.
- (x + y)3= x3 + y3 + 3xy (x + y)
- (x – y)3= x3 – y3 – 3xy (x – y)
- x3+ y3 = (x + y)(x2 – xy + y2)
wwwkartikeymishra104:
please do not copy to google because i already checked it in google but i am not satisfied. After that i ask question on this site, so please give me appropriate answer of my question. This is not appropriate answer. where is alpha and beta
ok sorry
α+β=−baandαβ=ca.
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