Разложите на множители:
1) $2ab - 3ab^2$;
2) $8x^4 + 2x^3$;
3) $12a^2b^2 + 6a^2b^3 + 12ab^3$;
4) $2a - 2b + ac - bc$;
5) $m^2 - mn - 4m + 4n$;
6) $ax - ay + cy - cx - x + y$.
$2ab - 3ab^2 = ab(2 - 3b)$
$8x^4 + 2x^3 = 2x^3(4x + 1)$
$12a^2b^2 + 6a^2b^3 + 12ab^3 = 6ab^2(2a + ab + 2b)$
$2a - 2b + ac - bc = (2a - 2b) + (ac - bc) = 2(a - b) + c(a - b) = (a - b)(2 + c)$
$m^2 - mn - 4m + 4n = (m^2 - mn) - (4m + 4n) = m(m - n) - 4(m - n) = (m - n)(m - 4)$
$ax - ay + cy - cx - x + y = (ax - ay) + (cy - cx) - (x - y) = a(x - y) + c(x - y) - (x - y) = (x - y)(a + c - 1)$
Пожауйста, оцените решение
