计算:(1)(a²-2a)÷(ab-2b)(2) (x²-9)÷(x²-6x+9)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 07:02:41
计算:(1)(a²-2a)÷(ab-2b)(2) (x²-9)÷(x²-6x+9)

计算:(1)(a²-2a)÷(ab-2b)(2) (x²-9)÷(x²-6x+9)
计算:(1)(a²-2a)÷(ab-2b)(2) (x²-9)÷(x²-6x+9)

计算:(1)(a²-2a)÷(ab-2b)(2) (x²-9)÷(x²-6x+9)
(1)(a²-2a)÷(ab-2b)
=[a(a-2)】÷【b(a-2)]
=a/b
(2) (x²-9)÷(x²-6x+9)
=[(x+3)(x-3)]÷【(x-3)²】
=(x+3)/(x-3)

1. (a2-2a)/(ab-2b)=a(a-2)/b(a-2)=a/b 2. (x2-9)/(x2-6x+9) =(x-3)(x+3)/(x-3)^2=(x+3)/(x-3)

你好,答案如下
1.a/b
2.(X+3)/(x-3)

(1)a/b (2)(x+3)/(x-3)