№1. Разложить на множители:
1) $$xy - xz + my - mz = x(y - z) + m(y - z) = (x + m)(y - z)$$
2) $$4a - 4b + ca - cb = 4(a - b) + c(a - b) = (4 + c)(a - b)$$
3) $$5a - ab - 5 + b = a(5 - b) - (5 - b) = (a - 1)(5 - b)$$
4) $$a^3 + a^2 + 2a + 2 = a^2(a + 1) + 2(a + 1) = (a^2 + 2)(a + 1)$$
5) $$8xy - 4y + 2x^2 - x = 4y(2x - 1) + x(2x - 1) = (4y + x)(2x - 1)$$
6) $$3x^3 - 5x^2y - 9x + 15y = x^2(3x - 5y) - 3(3x - 5y) = (x^2 - 3)(3x - 5y)$$
Ответ: 1) $$(x + m)(y - z)$$; 2) $$(4 + c)(a - b)$$; 3) $$(a - 1)(5 - b)$$; 4) $$(a^2 + 2)(a + 1)$$; 5) $$(4y + x)(2x - 1)$$; 6) $$(x^2 - 3)(3x - 5y)$$