1:(a+b)²=a²+2ab+b²
2: (a-b)²=a²-2ab+b²
3: a²-b²=(a-b)(a+b)
4: (a+b+c)²=a²+b²+c²+2ab+2ac+2bc
5: (a+b)³=a³+3a²b+3ab²+b³
6: (a-b)³=a³-3a²b+3ab²-b³
7: a³+b³=(a+b)(a²-ab+b²)
8: a³-b³=(a-b)(a²+ab+b²)
1:(a+b)²=a²+2ab+b²
2: (a-b)²=a²-2ab+b²
3: a²-b²=(a-b)(a+b)
4: (a+b+c)²=a²+b²+c²+2ab+2ac+2bc
5: (a+b)³=a³+3a²b+3ab²+b³
6: (a-b)³=a³-3a²b+3ab²-b³
7: a³+b³=(a+b)(a²-ab+b²)
8: a³-b³=(a-b)(a²+ab+b²)