先化简,再求值xy-(4/3y+4/3)-(3/2x+xy+2),其中x=2/3,y=-3/4解解呀!有赏金!我现在就要答案!_数学解答

先化简,再求值xy-(4/3y+4/3)-(3/2x+xy+2),其中x=2/3,y=-3/4
解解呀!有赏金!我现在就要答案!

人气：490 ℃　时间：2019-08-22 14:00:01

解答

xy-(4/3y+4/3)-(3/2x+xy+2)
=xy-4/3y-4/3-3/2x-xy-2
=-4/3y-3/2x-10/3
=1-1-10/3
=-10/3