第二个式子分母化为x(x-1)
公因式为2·x(x+1)(x-1)=2x(x²-1)
① x x³-x²
-------- = ---------
2(x+1) 2x(x²-1)
② 1 2x+2
--------- = ----------
x²-x 2x(x²-1)
第二个式子分母化为x(x-1)
公因式为2·x(x+1)(x-1)=2x(x²-1)
① x x³-x²
-------- = ---------
2(x+1) 2x(x²-1)
② 1 2x+2
--------- = ----------
x²-x 2x(x²-1)