计算题1.(4ab-b^2)(-2bc)2.2x(x^2-1/2x+1)3.(-3x^2)(4x^3- 4/9x+1)4.(-2ab^2)^2(3a^3b-2ab-4b^3)5.(3/4x^2y- 1/2xy^2- 5/6y^3)(-4xy^2)6.5x(x^2-2x+4)+x^2(x-1)7.2a(a^2t3a-2)-3(a^3+2a^2-a+1)8.t^3-2t[t^2-2(t-3)]9.x-1/4(1- 3x/2)- 1/3x(2-x/2)10.x^n(x^n+1-x^n+
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![计算题1.(4ab-b^2)(-2bc)2.2x(x^2-1/2x+1)3.(-3x^2)(4x^3- 4/9x+1)4.(-2ab^2)^2(3a^3b-2ab-4b^3)5.(3/4x^2y- 1/2xy^2- 5/6y^3)(-4xy^2)6.5x(x^2-2x+4)+x^2(x-1)7.2a(a^2t3a-2)-3(a^3+2a^2-a+1)8.t^3-2t[t^2-2(t-3)]9.x-1/4(1- 3x/2)- 1/3x(2-x/2)10.x^n(x^n+1-x^n+](/uploads/image/z/1007776-64-6.jpg?t=%E8%AE%A1%E7%AE%97%E9%A2%981.%EF%BC%884ab-b%5E2%29%28-2bc%292.2x%28x%5E2-1%2F2x%2B1%293.%28-3x%5E2%29%284x%5E3-+4%2F9x%2B1%294.%28-2ab%5E2%29%5E2%283a%5E3b-2ab-4b%5E3%295.%283%2F4x%5E2y-+1%2F2xy%5E2-+5%2F6y%5E3%29%28-4xy%5E2%296.5x%28x%5E2-2x%2B4%29%2Bx%5E2%28x-1%297.2a%28a%5E2t3a-2%29-3%28a%5E3%2B2a%5E2-a%2B1%298.t%5E3-2t%5Bt%5E2-2%28t-3%29%5D9.x-1%2F4%281-+3x%2F2%29-+1%2F3x%282-x%2F2%2910.x%5En%28x%5En%2B1-x%5En%2B)
计算题1.(4ab-b^2)(-2bc)2.2x(x^2-1/2x+1)3.(-3x^2)(4x^3- 4/9x+1)4.(-2ab^2)^2(3a^3b-2ab-4b^3)5.(3/4x^2y- 1/2xy^2- 5/6y^3)(-4xy^2)6.5x(x^2-2x+4)+x^2(x-1)7.2a(a^2t3a-2)-3(a^3+2a^2-a+1)8.t^3-2t[t^2-2(t-3)]9.x-1/4(1- 3x/2)- 1/3x(2-x/2)10.x^n(x^n+1-x^n+
计算题
1.(4ab-b^2)(-2bc)
2.2x(x^2-1/2x+1)
3.(-3x^2)(4x^3- 4/9x+1)
4.(-2ab^2)^2(3a^3b-2ab-4b^3)
5.(3/4x^2y- 1/2xy^2- 5/6y^3)(-4xy^2)
6.5x(x^2-2x+4)+x^2(x-1)
7.2a(a^2t3a-2)-3(a^3+2a^2-a+1)
8.t^3-2t[t^2-2(t-3)]
9.x-1/4(1- 3x/2)- 1/3x(2-x/2)
10.x^n(x^n+1-x^n+x-1)
^2表示 的平方
计算题1.(4ab-b^2)(-2bc)2.2x(x^2-1/2x+1)3.(-3x^2)(4x^3- 4/9x+1)4.(-2ab^2)^2(3a^3b-2ab-4b^3)5.(3/4x^2y- 1/2xy^2- 5/6y^3)(-4xy^2)6.5x(x^2-2x+4)+x^2(x-1)7.2a(a^2t3a-2)-3(a^3+2a^2-a+1)8.t^3-2t[t^2-2(t-3)]9.x-1/4(1- 3x/2)- 1/3x(2-x/2)10.x^n(x^n+1-x^n+