4,5俩题,thank

4,5俩题,thank 4、5题thank 4,5,6三题,thank 4,5,6,7.Thank you! 4,5,6题,Thank you thanK Thank thank thank thank thank thank thank thank 1-2+3-4+5-6+.+99-100怎么做今晚做业,越快越好,Thank you. 1/(x-1)(x-2)=1/(x-4)(x-5)thank you啦 a^2+b^2-2a+4b+√c+3+5=0Thank You 求(-1)+2+(-3)+4+(-5)+6+.+(-99)+100 帮下我thank