很简单的分解啊,先降次再拆分.肯定会有一些计算的.
(x^5+x^4-8) / (x^3-x)
=(x^5-x^3+x^4+x^3-8)/(x^3-x)
= x² + (x^4-x^2+x^3+x^2-8)/(x^3-x)
= x² + x + (x^3-x+x²+x-8)/(x^3-x)
= x² + x + 1 + (x²+x-8)/x(x+1)(x-1)
= x² + x + 1 + 8/x - 3/(x-1) - 4/(x+1)
很简单的分解啊,先降次再拆分.肯定会有一些计算的.
(x^5+x^4-8) / (x^3-x)
=(x^5-x^3+x^4+x^3-8)/(x^3-x)
= x² + (x^4-x^2+x^3+x^2-8)/(x^3-x)
= x² + x + (x^3-x+x²+x-8)/(x^3-x)
= x² + x + 1 + (x²+x-8)/x(x+1)(x-1)
= x² + x + 1 + 8/x - 3/(x-1) - 4/(x+1)