a²+b²/a²-b²-a-b/2a+2b

a²+b²/a²-b²-a-b/2a+2b
a²+b²/a²-b²-a-b/2a+2b

a²+b²/a²-b²-a-b/2a+2b
a²+b²/a²-b²-a-b/2a+2b
=(a²+b²)/(a²-b²)-(a-b)/2(a+b)
=(a²+b²)/(a+b)(a-b)-(a-b)/2(a+b)
=[2(a²+b²)-(a-b)(a-b)]/2(a+b)(a-b)
=(2a²+2b²-a²+2ab-b²)/2(a+b)(a-b)
=(a²+2ab+b²)/2(a+b)(a-b)
=(a+b)²/2(a+b)(a-b)
=(a+b)/2(a-b)

=(a^2-b^2)+(b^2/a^2)-b/2a+2b-a
=(a+b)(a-b)+(2b^2-ab)/(2a^2)+(2b-a)
=(a+b)(a-b)+(2b-a)(b/2a^2+1)

如果不是你忘记打括号了，就只能这么化简
=(a^2-b^2)+(b^2/a^2)-b/2a+2b-a
=(a+b)(a-b)+(2b^2-ab)/(2a^2)+(2b-a)
=(a+b)(a-b)+(2b-a)(b/2a^2+1)

如果不是你忘记打括号了50就只能这么化简＝（a＾2－b＾2）＋（b＾2＆＃47；a＾2）－b＆＃47；2a＋2b－a＝（a＋b）（a－b）＋（2b＾2－ab）＆＃47；（2a＾2）＋（2b－a）＝（a＋b）（a－b）＋（2b－a）（b＆＃47；2a＾2＋1）