Question

初二数学因式分解，急急急！谢谢

计算：【写过程】
(1) (2a)^3·b^4 ÷12a^3 b^2 (2) (-2/3a^7 b^5) ÷ 3/2 a^2 b^5
(3)(6/5 a^3 x^4-0.9ax^3)÷3/5ax^3 (4) (7x^2 y^3-8x^3 y^2 z)÷8x^2 y^2

Answer 1

(1) (2a)^3·b^4 ÷12a^3 b^2
=8a³b^4÷12a³b²
=2/3b²

(2) (-2/3a^7 b^5) ÷ 3/2 a^2 b^5
=-4/9a^5

(3)(6/5 a^3 x^4-0.9ax^3)÷3/5ax^3
=2a²x-3/2

(4) (7x^2 y^3-8x^3 y^2 z)÷8x^2 y^2
=7/8y-xz