9a²b-3ab+a²+6a²b+ab+2a²合并同类项
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 01:11:19
![9a²b-3ab+a²+6a²b+ab+2a²合并同类项](/uploads/image/z/2739192-24-2.jpg?t=9a%26%23178%3Bb-3ab%2Ba%26%23178%3B%2B6a%26%23178%3Bb%2Bab%2B2a%26%23178%3B%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9)
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9a²b-3ab+a²+6a²b+ab+2a²合并同类项
9a²b-3ab+a²+6a²b+ab+2a²
合并同类项
9a²b-3ab+a²+6a²b+ab+2a²合并同类项
原式=(9a²b+6a²b)+(ab-3ab)+(a²+2a²)
=15a²b-2ab+3a²
=a(15ab-2b+3a)