1) - 3a² + 3b² = -3(a² - b²) = -3(a + b)(a - b)2) 4am² - 4an² = 4a(m² - n²) = 4a(m + n)(m - n)3) 81 - 9p² = 9(9 - p²) = 9(3 + p)(3 - p)4) 50m² - 8n² = 2(25m² - 4n²) = 2(5m + 2n)(5m - 2n)5) 5x³ - 45x = 5x(x² - 9) = 5x(x + 3)(x - 3)6) 8a³ - 2ab² = 2a(4a² - b²) = 2a(2a + b)(2a - b)
1) - 3a² + 3b² = -3(a² - b²) = -3(a + b)(a - b)
2) 4am² - 4an² = 4a(m² - n²) = 4a(m + n)(m - n)
3) 81 - 9p² = 9(9 - p²) = 9(3 + p)(3 - p)
4) 50m² - 8n² = 2(25m² - 4n²) = 2(5m + 2n)(5m - 2n)
5) 5x³ - 45x = 5x(x² - 9) = 5x(x + 3)(x - 3)
6) 8a³ - 2ab² = 2a(4a² - b²) = 2a(2a + b)(2a - b)