Question

помогите срочно номер 2

Answer 1

a) 9m² - 12mn = 3m(3m - 4n)

б) 15x⁴ - 5x = 5x(3x³ - 1)

в) ax - ay + 7x - 7y = a(x - y) + 7(x - y) = (x - y)(a + 7)