4/9m²-0.01² 8a²-2a(a+1)² -(b-c)²+4a² 1-16a^4b^4 (3m+2n)²-(m-
1个回答
(3m+2n)²-(m-n)²=(3m+2n+m-n)(3m+2n-m+n)=(4m+n)(2m+3n)
同学:以后别列出那么多,一看就是让别人替你做作业.
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