(x^2y^2)^2(x+3)^2(x-y)^2 今天就要,

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(x^2y^2)^2(x+3)^2(x-y)^2 今天就要,
(x^2y^2)^2(x+3)^2(x-y)^2 今天就要,

(x^2y^2)^2(x+3)^2(x-y)^2 今天就要,
原式=(x^4y^4)(x²+6x+9)(x²-2xy+y²)
=(x^4y^4×x²+x^4y^4×6x+x^4y^4×9)(x²-2xy+y²)
=(x^6y^4+6x^5y^4+9x^4y^4)(x²-2xy+y²)
=x^6y^4×x²+x^6y^4×(-2xy)+x^6y^4×y²+6x^5y^4×x²+6x^5y^4×(-2xy)+6x^5y^4×y²+9x^4y^4×x²+9x^4y^4×(-2xy)+9x^4y^4×y²
=x^8y^4-2x^7y^5+x^6y^6+6x^7y^4-12x^6y^5+6x^5y^6+9x^6y^4-18x^5y^5+9x^4y^6

x(x-y)2-(y-x)3 [2/3x-2/x+y(x+y/3x-x-y)]/x-y/x 化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x 计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x 因式分解x(x+y)(x-y)-x(x+y)^2 化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-x) 因式分解3x^2(x-y)+6x(y-x) 3^x+2x=y,x 计算：x+2y/x-y+2x/y-x-3y/x-y 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方 [(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y) x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简y(x+y)+(x+y)(x-y)-x^2 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 x^2(x-y)+(y-x) 2X(2X-3Y)-3Y(X+Y) (-2x y)^2-(3y-x)(-x-3y)