初二下册数学题 要过程(m-n)的2001次方-(n-m)的2002次方= 2.(m-n)的2n次方-(n-m)的2n+1次方= 3. 2m-2n+n(n-m)= 4. (a-b-c)(a+b-c)-(b-c-a)(b+c-a) =
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![初二下册数学题 要过程(m-n)的2001次方-(n-m)的2002次方= 2.(m-n)的2n次方-(n-m)的2n+1次方= 3. 2m-2n+n(n-m)= 4. (a-b-c)(a+b-c)-(b-c-a)(b+c-a) =](/uploads/image/z/11573476-52-6.jpg?t=%E5%88%9D%E4%BA%8C%E4%B8%8B%E5%86%8C%E6%95%B0%E5%AD%A6%E9%A2%98+%E8%A6%81%E8%BF%87%E7%A8%8B%EF%BC%88m-n%EF%BC%89%E7%9A%842001%E6%AC%A1%E6%96%B9-%EF%BC%88n-m%EF%BC%89%E7%9A%842002%E6%AC%A1%E6%96%B9%3D+++++++++++++++++++++2.%EF%BC%88m-n%EF%BC%89%E7%9A%842n%E6%AC%A1%E6%96%B9-%EF%BC%88n-m%EF%BC%89%E7%9A%842n%2B1%E6%AC%A1%E6%96%B9%3D++++++++++++3.+++2m-2n%2Bn%EF%BC%88n-m%EF%BC%89%3D+++++++++++++++4.+++++%EF%BC%88a-b-c%EF%BC%89%EF%BC%88a%2Bb-c%EF%BC%89-%EF%BC%88b-c-a%EF%BC%89%EF%BC%88b%2Bc-a%EF%BC%89+%3D)
初二下册数学题 要过程(m-n)的2001次方-(n-m)的2002次方= 2.(m-n)的2n次方-(n-m)的2n+1次方= 3. 2m-2n+n(n-m)= 4. (a-b-c)(a+b-c)-(b-c-a)(b+c-a) =
初二下册数学题 要过程
(m-n)的2001次方-(n-m)的2002次方= 2.(m-n)的2n次方-(n-m)的2n+1次方= 3. 2m-2n+n(n-m)= 4. (a-b-c)(a+b-c)-(b-c-a)(b+c-a) = 5. 解方程(55x+35)(53x+26)-(55x+35)(53x+27) =0 6. -x²+y²=(-x+y)(-x-y)
7. -x²-y²=-(x+y)(x-y)
要过程过程!!!!!!!!!!!!!!!!过程非常重要,不然不给分!!!!
初二下册数学题 要过程(m-n)的2001次方-(n-m)的2002次方= 2.(m-n)的2n次方-(n-m)的2n+1次方= 3. 2m-2n+n(n-m)= 4. (a-b-c)(a+b-c)-(b-c-a)(b+c-a) =
﹙m-n+1﹚﹙m-n﹚^2001
﹙m-n+1﹚﹙m-n﹚^2n
﹙2-n﹚﹙m-n﹚
2﹙b-c﹚﹙a-b-c﹚
x=7/11