Выполните задание 2.4
4, 5, 6, 7, и 8-ой пример

Алгебра 7 класс

4) 3ab(-2)b = -3ab*2b = -6ab^2

5) 4/3x^2y * 4.5x^3 = 4/3x^2y * 9/2x^3 = 2x^2y * 3x^3 = 6x^5y

6) 1.2xyz * 5x = 6xyzx = 6x^2yz

7) 6p^2(-0.8)q = -6p^2 * 0.8q = -4.8p^2q

8) 5m^2n^3 * 2m = 10m^2n^3m = 10m^3n^3