(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)当x=_____时,式子2分之(3-2x)与3分之(2-x)互为相反数.(3)已知关于x.y的单项式-3分之1x^2y^m+1和同类项,n=____m=_____(4)若m.n满足|m
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![(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)当x=_____时,式子2分之(3-2x)与3分之(2-x)互为相反数.(3)已知关于x.y的单项式-3分之1x^2y^m+1和同类项,n=____m=_____(4)若m.n满足|m](/uploads/image/z/10088115-51-5.jpg?t=%281%29%7Cm-n%7C%3Dn-m.%E4%B8%94%7Cm%7C%3D4%2C%7Cn%7C%3D3%2C%E5%88%99%28m%2Bn%29%5E2%3D_____.%282%29%281%29%7Cm-n%7C%3Dn-m.%E4%B8%94%7Cm%7C%3D4%2C%7Cn%7C%3D3%2C%E5%88%99%28m%2Bn%29%5E2%3D_____.%282%29%E5%BD%93x%3D_____%E6%97%B6%2C%E5%BC%8F%E5%AD%902%E5%88%86%E4%B9%8B%283-2x%29%E4%B8%8E3%E5%88%86%E4%B9%8B%282-x%29%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0.%283%29%E5%B7%B2%E7%9F%A5%E5%85%B3%E4%BA%8Ex.y%E7%9A%84%E5%8D%95%E9%A1%B9%E5%BC%8F-3%E5%88%86%E4%B9%8B1x%5E2y%5Em%2B1%E5%92%8C%E5%90%8C%E7%B1%BB%E9%A1%B9%2Cn%3D____m%3D_____%284%29%E8%8B%A5m.n%E6%BB%A1%E8%B6%B3%7Cm)
(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)当x=_____时,式子2分之(3-2x)与3分之(2-x)互为相反数.(3)已知关于x.y的单项式-3分之1x^2y^m+1和同类项,n=____m=_____(4)若m.n满足|m
(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)
(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.
(2)当x=_____时,式子2分之(3-2x)与3分之(2-x)互为相反数.
(3)已知关于x.y的单项式-3分之1x^2y^m+1和同类项,n=____m=_____
(4)若m.n满足|m-2|+(n+3)^2=0,则n^m=_____
(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=_____.(2)当x=_____时,式子2分之(3-2x)与3分之(2-x)互为相反数.(3)已知关于x.y的单项式-3分之1x^2y^m+1和同类项,n=____m=_____(4)若m.n满足|m
(1)|m-n|=n-m.且|m|=4,|n|=3,则(m+n)^2=__1或49___.
m-n|=n-m
则n>m
根据|m|=4,|n|=3 可得
(1)n=3,m=-4,故 (m+n)²=1
(2)n=-3,m=-4,故,(m+n)²=49
(2)当x=___13/8__时,式子2分之(3-2x)与3分之(2-x)互为相反数.
根据3-2X分之2等于负的2-X分之3这个前提,得出互为相反数的和等于0,所以式子3-2X分之2加上2-X分之3等于0,解方程得出x=13/8
(4)若m.n满足|m-2|+(n+3)^2=0,则n^m=__9___
|m-2|+(n+3)的二次方=0,
m-2=0,n+3=0
m=2,n=-3
则n的m次方=(-3 )^2=9
(1)n=3,m=-4,故 (m+n)²=1
n=-3,m=-4,故,(m+n)²=49
(2)由题意得2(3-2X)=-3(2-X)
6-4X=-6+3X
-7X=-12
X=12/7
(3)没看明白
(4)|m-2|+(n+3)的二次方=0,
m-2=0,n+3=0
m=2,n=-3
则n的m次方=(-3 )^2=9
(1)m
(2)(3-2x)/2+(2-x)/3=0 解出来就是 x=13/8
(3)题里看不到n 怎么求n
(4)m-2的绝对值=0 和n+3=0 m=2 n= - 3 n^m=9
1或49
1、因为 m-n<=0,即m<=n,
所以 m=-4,n=3或m=-4,n=-3
则 (m+n)^2=1或49
2、 (3-2x)/2=-(2-x)/3
解得 x=13/8
3、题目错了
4、m-2=0且n+3=0
解得 m=2,n=-3
所以 n^m=9
(1)(m+n)^2=1
(2) X= 13/8
(3) 题目有错,请核实更正
(4) n^m=9
完毕!