化简1⼀(x-1)+1⼀(x+1)+2x⼀(x^2+1)+4x^3⼀(x^4+1)

2025-02-23 22:39:24
推荐回答(1个)
回答1:

解:原式=2x/x^2-1+2x/(x^2+1)+4x^3/(x^4+1)
=4x^3/(x^4-1)+4x^3/(X^4+1)
=4x^7/(x^16-1)