Below are the list of all important algebraic formulas.
1. (a+b)² = a²+b²+2ab
2. (a-b)² = a²+b²-2ab
3. a²-b² = (a-b)(a+b)
4. (a+b)³= a³+b³+3ab(a+b)
5. (a-b)³= a³-b³-3ab(a-b)
6. a³+b³ = (a+b)(a²+b²-ab)
7. a³-b³ = (a-b)(a²+b²+ab)
8. (a+b+c)² = a²+b²+c²+2ab+2bc+2ca
9. a³+b³+c³-3abc = (a+b+c)(a²+b²+c²-ab-bc-ca)