2x²y+3xy²-(6x²y-3xy²) (6a²-8a+11b的3
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/06/07 16:21:31
2x²y+3xy²-(6x²y-3xy²) (6a²-8a+11b的3次方)-(11a²+2b的3次方)
(4mn²+3m²n-4m)-2(mn²+2分之3m²n+1 )
(4mn²+3m²n-4m)-2(mn²+2分之3m²n+1 )
2x²y+3xy²-(6x²y-3xy²)
=2x²y+3xy²-6x²y+3xy²
=6xy²-4x²y
(6a²-8a+11b的3次方)-(11a²+2b的3次方)
=6a²-8a+11b³-11a²-2b³
=-5a²-8a+9b³
(4mn²+3m²n-4m)-2(mn²+2分之3m²n+1 )
=4mn²+3m²n-4m-2mn²-3m²n-2
=2mn²-4m-2
=2x²y+3xy²-6x²y+3xy²
=6xy²-4x²y
(6a²-8a+11b的3次方)-(11a²+2b的3次方)
=6a²-8a+11b³-11a²-2b³
=-5a²-8a+9b³
(4mn²+3m²n-4m)-2(mn²+2分之3m²n+1 )
=4mn²+3m²n-4m-2mn²-3m²n-2
=2mn²-4m-2
2x²y+3xy²-(6x²y-3xy²) (6a²-8a+11b的3
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