3,5y题
(2x+3y)(x-4y)、(5x-y)(-x-3y)、(3-x)(4+y)谁告诉我这类题怎么做呀?
初二化简求值题[(5x+2y)(3x+2y)+(x+2y)(x-2y)]/4x,其中x=2,y=3
解方程3y^2-(2y+1)(y-2)=(y-5)(y-1)
解方程:3y^2-(2y+1)(y-1)=(y-5)(y+1)
(y-x)(x-y)^3(y-x)^5怎么算
求微分方程y”-3y’+2y=5
解方程y-[3y-1]等于5【y+2]
数学(x-y)^5*(y-x)^3*(x-y)^2
解不等式:5y(8-y)-3y(5-3y)+2y(7-2y)>-39
(2y-3)(-y+4)=(y-2)(y-5)-3y(y-7/3)解方程
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
8y-3=5y+3