(-2y^2)^3+y·y^5
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(-2y^2)^3+y·y^5(-2y^2)^3+y·y^5(-2y^2)^3+y·y^5-7y^6
(-2y^2)^3+y·y^5
(-2y^2)^3+y·y^5
(-2y^2)^3+y·y^5
-7y^6
(-2y^2)^3+y·y^5
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y (3y^2+8y-3)-6y(3y+2y-1)+9y
5y∧2-(y-2)(3y+1)-2(y+1)(y-5)
2y+5/3y-6-y/2=5y-4/2y-4
解方程3y^2-(2y+1)(y-2)=(y-5)(y-1)
2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1
解方程:3y^2-(2y+1)(y-1)=(y-5)(y+1)
解方程:3y²-(2y+1)(y-2)=(y-5)(y+1)
2(3-2y)+3y =5求y
y-(y-1)/2=1-(2y-3)/5
y-y-1/2=3-y+2/5
解方程y-[3y-1]等于5【y+2]
化简:5(x-y)+2(x+y)-3(x-y)
2y²-3y-5=0 求y
2y=3y+5求y在检验,