甲:李野0.8x+0.2(y-x)
=0.8x+0.2y-o.2x
=0.6x+0.2y
乙:0.8×(0.8x+0.2y)
=0.64x+0.16y
(2):甲:0.6×5+0.2×6
=3+1.2
=4.2
乙:哪芦喊0.64×5+0.16×6
=3.2+0.96
=4.16
所以哗稿选乙
(1)甲(y-x)*0.2+0.8x
乙0.8(漏毕0.8x+0.2y)
(2)甲(6-5)困搜明*0.2+0.8*5=4.2
乙0.8(0.8*5+0.2*6)=4.16去汪告乙商店合算