Algebra Formulas – বীজগণিত সুত্র সমূহ
Algebraic Formulas | Algebraic Expression
- (a + b)2 = a2 + 2ab + b2
- (a – b)2 = a2 – 2ab + b2
- (a + b)2 = (a – b)2 + 4ab
- (a – b)2 = (a + b)2 – 4ab
- (a + b+ c)2 = a2 + b2 + c2 + 2ab +2bc + 2ca
- (a + b+ c)2 = a2 + b2 + c2 – 2ab +2bc – 2ca
- (x + a)(x + b) = x2 + (a + b)x + ab
- a2 + b2 = (a + b)2 − 2ab
- a2 + b2 = (a – b)2 + 2ab
- a2 + b2 =
- 2(a2 + b2 )= (a + b)2 + (a – b)2
- a2 + b2 + c2 =(a + b+ c)2 – 2(ab +bc + ca)
- 2(ab +bc + ca) = (a + b+ c)2 – (a2 + b2 + c2 )
- a2 ‑ b2 = (a – b)2 + 2ab
- a2 ‑ b2 = (a + b) (a – b)
- 4ab = (a +b)2 – (a – b)2
- ab =
- (a + b)3 = a3 + 3a2b + 3ab2 + b3
- (a – b)3 = a3 – 3a2b + 3ab2 – b3
- (a3 + b3) = (a + b)3 – 3ab (a + b)
- (a3 – b3) = (a – b)3 + 3ab (a – b)
- (a3 + b3) = (a + b) (a2 – ab + b2)
- (a3 – b3) = (a – b) (a2 + ab + b2)
