2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]
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2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]2(x^2-xy)-3(-2
2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]
2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]
2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]
2(x^2-xy)-3(-2x^2-3xy)-2[x^2-(2x^2-xy+y^2)]
=2x²-2xy+6x²+9xy-2x²+4x²-2xy+2y²
=10x²+5xy+2y²
3xy(x^2-xy^2+xy)-xy^2(2x^2-xy+2x)
计算:1-2x+x^2/x-x^3*xy+x^2y/x-x^2
因式分解X^3-2xy+xy^2
因式分解x²-2xy-3x
因式分解3x^2-6xy+x
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
-3(2x^2-xy)+4(x^2+xy-6)
2(x平方-xy)-3(2x平方-3xy)
1-(3xy-x)+【-2(2x+3xy)】
计算:3xy[2xy-x(y-2)+x]
2x平方-3xy+(2xy-x平方)化简!
因式分解x^3+2xy-x-xy^2=
计算3xy[2xy-x(y-2)+x-1]
(-3x^y+2xy)-( )=4x^+xy
4(x²+xy-6)-3(2x²-xy)
(2x的平方-xy)+(x的平方+xy-3)
-3(2x²-xy)+4(x²+xy-6)
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程