Math formula
1. (a + b)² = a² + b² + 2ab / a² + 2ab + b²
2. (a - b)² = a² + b² - 2ab /
a² - 2ab + b²
3. a² - b² = (a + b) (a - b) /
(a + b)(a - b) = a² - b²
4. a² + b² = (a + b)² - 2ab/
(a - b)² + 2ab
5. (a + b)³ = a³ + 3a²b + 3ab² + b³ /
a³ + b³ + 3a²b + 3ab²/
a³ + b³ + 3ab(a + b)
6. (a - b)³ = a³ - 3a²b + 3ab² - b³ /
a³ - b³ - 3a²b + 3ab²/
a³ - b³ - 3ab(a - b)
7. a³ + b³ = (a + b) (a² - ab + b²) /
(a + b)³ - 3ab(a + b)
8. a³ - b³ = (a - b) (a² + ab +b²) /
(a -b) ³ + 3ab(a - b)
9. (a + b + c)² = a² + b² + c² + 2(ab + bc + ca) /
a² + b² + c² + 2ab + 2bc + 2ca
10. a² + b² + c² = (a + b + c) ² - 2(ab + bc + ca)
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