设M=3a^3-10a^2-5,N=-2a^3+5-10a,P=7-5a-2a^2,求m+2n-3p
来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/05/18 04:39:54
设M=3a^3-10a^2-5,N=-2a^3+5-10a,P=7-5a-2a^2,求m+2n-3p
和m-3n+2p的值
和m-3n+2p的值
m+2n-3p
=3a^3-10a^2-5+2(-2a^3+5-10a)-3(7-5a-2a^2)
=3a^3-10a^2-5-4a^3+10-20a-21+15a+6a^2
=-a^3-4a^2-5a-16
m-3n+2p
=3a^3-10a^2-5-3(-2a^3+5-10a)+2(7-5a-2a^2)
=3a^3-10a^2-5+6a^3-15+30a+14-10a-4a^2
=9a^3-14a^2+20a-6
=3a^3-10a^2-5+2(-2a^3+5-10a)-3(7-5a-2a^2)
=3a^3-10a^2-5-4a^3+10-20a-21+15a+6a^2
=-a^3-4a^2-5a-16
m-3n+2p
=3a^3-10a^2-5-3(-2a^3+5-10a)+2(7-5a-2a^2)
=3a^3-10a^2-5+6a^3-15+30a+14-10a-4a^2
=9a^3-14a^2+20a-6
已知M=3a^3-10a^2-5,N=-2a^3+5-10a,P=7-5a-2a^2,求M+2N-3P和M-3N+2P的
设M=3a^3-10a^2-5,N=-2a^3+5-10a,P=7-5a-2a^2,求2M+3N-3P的值
设M=3a^3-10a^2-5,N=-2a^3+5-10a,P=7-5a-2a^2,求m+2n-3p
已知a^m=p,a^n=q,求a^2m+3n的值
a^m-2n-3p等于
设向量m=2a-3b,n=4a-2b,p=3a+2b,则p用m.n表示
设向量M=2a-3b.n=4a-2b,p=3a+2b,则p用m,n表示为?
(1)设m=a 2/a 3,n=a 1/a 2,p=a/a 1,若a
a^m=3,a^n=5求a^3m-2n的值
已知A^M=3,A^N=5,求A^M+2N的值
如果a的m次方=q,a的n次方=p(m、a为正整数),求a的3m次方,a的2n次方,a的3m+2n次方的值
已知a的m次方=2,a的n次方=5,a的p次方=-2,求a的 5m+2n-3p次方的值