多项式分解1/(t+t^2+t^3+t^4)怎么分解成6/t - 3/(1+t) - (3t+3)/(1+t^2)(u^2-1)^2如何分解成-1/(u-1)+1/(u-1)^2+1/(u+1)+1/(u+1)^2

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多项式分解1/(t+t^2+t^3+t^4)怎么分解成6/t - 3/(1+t) - (3t+3)/(1+t^2)(u^2-1)^2如何分解成-1/(u-1)+1/(u-1)^2+1/(u+1)+1/(u+1)^2

多项式分解1/(t+t^2+t^3+t^4)怎么分解成6/t - 3/(1+t) - (3t+3)/(1+t^2)(u^2-1)^2如何分解成-1/(u-1)+1/(u-1)^2+1/(u+1)+1/(u+1)^2
多项式分解
1/(t+t^2+t^3+t^4)怎么分解成6/t - 3/(1+t) - (3t+3)/(1+t^2)
(u^2-1)^2如何分解成-1/(u-1)+1/(u-1)^2+1/(u+1)+1/(u+1)^2

多项式分解1/(t+t^2+t^3+t^4)怎么分解成6/t - 3/(1+t) - (3t+3)/(1+t^2)(u^2-1)^2如何分解成-1/(u-1)+1/(u-1)^2+1/(u+1)+1/(u+1)^2

1/(t+t^2+t^3+t^4)应改为6/(t+t^2+t^3+t^4)

(u^2-1)^2应改为4/(u^2-1)^2

看图:

第一个分母=t(1+t^2)+t^2(1+t^2)=t(1+t)(1+t^2)此时拆项,分子配合适就是那个答案了
第二个题不太对吧,是缺分子,你还少输了点什么吧