初一数学填空3个-10m^2n+5m^4n-15m^3n^2=若x^2+mx-4=(x-4)(x+1)则m=2x+y=3
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初一数学填空3个
-10m^2n+5m^4n-15m^3n^2=
若x^2+mx-4=(x-4)(x+1)则m=
2x+y=3 且x-3y=5 则 y(x-3y)^2+2x(x-3y)^2=
-10m^2n+5m^4n-15m^3n^2=
若x^2+mx-4=(x-4)(x+1)则m=
2x+y=3 且x-3y=5 则 y(x-3y)^2+2x(x-3y)^2=
![初一数学填空3个-10m^2n+5m^4n-15m^3n^2=若x^2+mx-4=(x-4)(x+1)则m=2x+y=3](/uploads/image/z/12409738-34-8.jpg?t=%E5%88%9D%E4%B8%80%E6%95%B0%E5%AD%A6%E5%A1%AB%E7%A9%BA3%E4%B8%AA-10m%5E2n%2B5m%5E4n-15m%5E3n%5E2%3D%E8%8B%A5x%5E2%2Bmx-4%3D%28x-4%29%28x%2B1%29%E5%88%99m%3D2x%2By%3D3)
1、?
2、-3
3、75
2、-3
3、75
初一数学填空3个-10m^2n+5m^4n-15m^3n^2=若x^2+mx-4=(x-4)(x+1)则m=2x+y=3
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