(2y+y+3)+26
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(2y+y+3)+26(2y+y+3)+26(2y+y+3)+263y+29
(2y+y+3)+26
(2y+y+3)+26
(2y+y+3)+26
3y+29
(2y+y+3)+26
解(y-3分之2y+y+3分之y)×y分之y²-9
解方程:(y-3y+2)(y+3y-2)=y(y+3)(y-3)
(y+4)²-(y-2)(y-3)
3y(y-1)等于2(y-1)
2(x-y)²-3(x-y)(-y-x)
3x+y=2 -y/x+y=123x+y=2 (-y/x)+y=12
(y+2)(y-3) 可以化简吗?
y (3y^2+8y-3)-6y(3y+2y-1)+9y
(2y+5/3y)²-5y×(5/3y+y)=4 求y的值.(2y+5/3y)的平方-5y×(5/3y+y)=4
已知y=y(x)的导数y',y‘’存在,且y=y(x)的反函数为x=x(y),试用y',y''表示(d^2x)/dx^2 —(y'')/(y')^3
方程5y(2y-3)=(y+2)(y-2)-1
(y-3)/(4y-8)÷(y+2-5/(y-2))
(y-x)^4(x-y)^3+2(x-y)^6(y-x)
(x-y)^3×(y-x)^4+(x-y)^2×(y-x)^5
(y+1)分之(2y+3)=(3y+4)分之(6y+7)
3(y+1)>4y+2 2(y-1)≤3y 解不等式
4y(3y-2)-2y(6y+5)>8解不等式