-5ab ²+3ba ²-3ab ²+4a ²b=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 10:04:58
![-5ab ²+3ba ²-3ab ²+4a ²b=](/uploads/image/z/13302042-42-2.jpg?t=-5ab+%26%23178%3B%2B3ba+%26%23178%3B-3ab+%26%23178%3B%2B4a+%26%23178%3Bb%3D)
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-5ab ²+3ba ²-3ab ²+4a ²b=
-5ab ²+3ba ²-3ab ²+4a ²b=
-5ab ²+3ba ²-3ab ²+4a ²b=
原式=7a平方b-8ab平方