❶ 5﹙x-2﹚²+a﹙2-x﹚❷﹙x+y﹚³﹙x+y﹚²-﹙-x-y﹚
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 14:54:52
![❶ 5﹙x-2﹚²+a﹙2-x﹚❷﹙x+y﹚³﹙x+y﹚²-﹙-x-y﹚](/uploads/image/z/1585970-26-0.jpg?t=%26%2310102%3B+5%EF%B9%99x-2%EF%B9%9A%26%23178%3B%2Ba%EF%B9%992-x%EF%B9%9A%26%2310103%3B%EF%B9%99x%2By%EF%B9%9A%26%23179%3B%EF%B9%99x%2By%EF%B9%9A%26%23178%3B-%EF%B9%99-x-y%EF%B9%9A)
x)SS64040V0}sfBډ@#
P5Hv%T%*Z $e2BR/N5 JkBMIs `in&>jp(JMZ8FR!m$Q3Ԯچ6yv x-
❶ 5﹙x-2﹚²+a﹙2-x﹚❷﹙x+y﹚³﹙x+y﹚²-﹙-x-y﹚
❶ 5﹙x-2﹚²+a﹙2-x﹚
❷﹙x+y﹚³﹙x+y﹚²-﹙-x-y﹚
❶ 5﹙x-2﹚²+a﹙2-x﹚❷﹙x+y﹚³﹙x+y﹚²-﹙-x-y﹚
❶ 5﹙x-2﹚²+a﹙2-x﹚
=5(x-2)²-a(x-2)
=(x-2)(5x-10-a)
❷﹙x+y﹚³+﹙x+y﹚²-﹙-x-y﹚
=(x+y)³+(x+y)²+(x+y)
=(x+y)[(x+y)²+(x+y)+1]
=(x+y)(x²+2xy+y²+x+y+1)