大家好，我是小科，我来为大家解答以上问题。初一数学计算题100道，初二数学计算题很多人还不知道，现在让我们一起来看看吧！
1、[3x^(2n)-12] / { x^(2n+3) - 6x^(n+3)+9x^3} * (x^n+3) /(x^n-2) ÷ [3x^n+6] / [x^(n+1)+3x]
2、= 3(x^n+2)(x^n-2) / {x^3[x^(2n) - 6x^n+9]} * (x^n+3) / (x^n-2) ÷ [3(x^n+2)] / [x(x^n+3)]
3、= 3(x^n+2)(x^n-2) / [x^3(x^n-3)^2] * (x^n+3) / (x^n-2) * [x(x^n+3)] / [3(x^n+2)]
4、= 1 / [x^2(x^n-3)^2] * (x^n+3) * (x^n+3)
5、= (x^n+3)^2/[x^2(x^n-3)^2
6、[3x^(2n)-12] / { x^(2n+3) + 6x^(n+3)+9x^3} * (x^n+3) /(x^n-2) ÷ [3x^n+6] / [x^(n+1)+3x]
7、= 3(x^n+2)(x^n-2) / {x^3[x^(2n) +6x^n+9]} * (x^n+3) / (x^n-2) ÷ [3(x^n+2)] / [x(x^n+3)]
8、= 3(x^n+2)(x^n-2) / [x^3(x^n+3)^2] * (x^n+3) / (x^n-2) * [x(x^n+3)] / [3(x^n+2)]
9、= 1 / [x^2(x^n+3)^2] * (x^n+3) * (x^n+3)
10、= 1/x^2
本文到此讲解完毕了，希望对大家有帮助。