1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y计算1.(2/3)^8*8^9*(3/4)^10/(4)^9计算1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y
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1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y计算1.(2/3)^8*8^9*(3/4)^10/(4)^9计算1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y
1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y
计算1.(2/3)^8*8^9*(3/4)^10/(4)^9
计算
1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y
1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y计算1.(2/3)^8*8^9*(3/4)^10/(4)^9计算1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y
(2/3)^8*8^9*(3/4)^10/(4)^9=1.125
是因式分解吗?
1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y=(3+x^2+xy+x^2y)/6
(2/3)^8*8^9*(3/4)^10/(4)^9=9/8
1/2+1/2x^2+1/2xy+1/2x^2y-1/3x^2-1/3xy-1/3x^2y=1/2-1/6x^2y+1/6x^2-1/3xy
.(x+y-2)(x+y-2xy)+(xy-1)^2
计算3xy[2xy-x(y-2)+x-1]
1-(3xy-x)+【-2(2x+3xy)】
xy(xy+1)+xy+3-2(x+y+1/2)-(x+y-1)^2因式分解
(-1/3xy)^2•[xy(2x-y)-2x(xy-y^2)]
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分解因式:(X+Y)*(X+Y+2XY)+(XY+1)*(XY-1)
因式分解:1/2x-xy+1/2xy²
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5x^2y/-1/2xy*3xy^2
(-xy^-1)^2*(-xy^-2)^-3/(-x^2y^3)
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XY(XY+3)+(XY+4)+4(X+Y+1)-(X+Y+2)
因式分解xy²-2xy+x+2y-1
( )-(x^2+3xy)=-xy-1/3y^2