1) am² - an² = am² - an² = am²(1 - n)2) 27x² - 12y² = 3(9x² - 4y²) = 3(3x + 2y)(3x - 2y)3) -m² + m⁴ = -m²(1 - m²) = -m²(1 - m)(1 + m) = -m²(1 + m)(1 - m)4) 50x³ - 18x = 2x(25x² - 9) = 2x(5x + 3)(5x - 3)
1) am² - an² = am² - an² = am²(1 - n)
2) 27x² - 12y² = 3(9x² - 4y²) = 3(3x + 2y)(3x - 2y)
3) -m² + m⁴ = -m²(1 - m²) = -m²(1 - m)(1 + m) = -m²(1 + m)(1 - m)
4) 50x³ - 18x = 2x(25x² - 9) = 2x(5x + 3)(5x - 3)