(a²-b²)÷(a-b) (a²+2ab+b²)²÷(-a-b)³①(a²-b²)÷(a-b) ②(a²+2ab+b²)²÷(-a-b)³
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 12:55:50
![(a²-b²)÷(a-b) (a²+2ab+b²)²÷(-a-b)³①(a²-b²)÷(a-b) ②(a²+2ab+b²)²÷(-a-b)³](/uploads/image/z/2589611-59-1.jpg?t=%28a%26%23178%3B-b%26%23178%3B%29%C3%B7%28a-b%29+%28a%26%23178%3B%2B2ab%2Bb%26%23178%3B%EF%BC%89%26%23178%3B%C3%B7%EF%BC%88-a-b%EF%BC%89%26%23179%3B%E2%91%A0%28a%26%23178%3B-b%26%23178%3B%29%C3%B7%28a-b%29+%E2%91%A1%28a%26%23178%3B%2B2ab%2Bb%26%23178%3B%EF%BC%89%26%23178%3B%C3%B7%EF%BC%88-a-b%EF%BC%89%26%23179%3B)
(a²-b²)÷(a-b) (a²+2ab+b²)²÷(-a-b)³①(a²-b²)÷(a-b) ②(a²+2ab+b²)²÷(-a-b)³
(a²-b²)÷(a-b) (a²+2ab+b²)²÷(-a-b)³
①(a²-b²)÷(a-b)
②(a²+2ab+b²)²÷(-a-b)³
(a²-b²)÷(a-b) (a²+2ab+b²)²÷(-a-b)³①(a²-b²)÷(a-b) ②(a²+2ab+b²)²÷(-a-b)³
解析
①(a²-b²)÷(a-b)
=(a+b)(a-b)÷(a-b)
=a+b
②(a²+2ab+b²)²÷(-a-b)³
=(a+b)^4/[-(a+b)]^3
= -(a+b)
=-a-b