80x^2-40x/30x^2-6x^3
1个回答
80x^2-40x/30x^2-6x^3
=40x(2x-1)/6x^2(5-x)
=20(2x-1)/3x(5-x)
相关问题
(1)x+y=420,30%x+40%y=160×80% (2)x-y/7-x+y/6=1/2,2(x-y)-5(x+y
解方程:①X-60% X=18②[3/5]X+2.5×8=95③40%X+30=80.
(40-2x)(30-2x)=1/2×30×40 (40-2x)(30-2x)=600 (x-20)(x-15)=150
20—15%x=5 x+40%x=28 2x—80%x=48 24+30%x=48
40/(2/3) x) +30/x=1
30%x+44.2=51.1 x+35%x=9 x-40%x=3.6 解方程
化简80 \ 2\3x 一 40 / 2/3x
解方程(1) 3 4 X÷ 1 6 =18(2)X-40%X=30.
360-2x=80 30÷3x=5 15-6x=2.4x5 18-12x=1.2x5 请解.
(2x/3)/40- (2x/3)/80=1.5怎么算