4(x-2y)2-9(3x-4y)24(x-2y)²-9(3x-4y)²
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4(x-2y)2-9(3x-4y)24(x-2y)²-9(3x-4y)²4(x-2y)2-9(3x-4y)24(x-2y)²-9(3x-4y)²4(x-2y)2
4(x-2y)2-9(3x-4y)24(x-2y)²-9(3x-4y)²
4(x-2y)2-9(3x-4y)2
4(x-2y)²-9(3x-4y)²
4(x-2y)2-9(3x-4y)24(x-2y)²-9(3x-4y)²
(2x-4y+9x-12y))(2x-4y-9x+12y)
=(11x-16y)(8y-7x)平方差公式
81/8*(-x-y)^6*(x-y)^3*4/9(x+y)^4*(y-x)^2
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
(66x^6y^3-24x^4y^2+9x^2y)÷(-3x^2y)化简
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
(x+3y-4)(2x-y)
计算(2x-3y)(x+4y)-(3x+y)(x-2y)(2x-3y)(x+4y)-(3x+y)(x-2y)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
9y=3x-(x-1),4(x+y)-(2x+4)=8y
(4x-3y)(5x+2y)-2x(9x-5y) 等于多少
根据3(x+y)-2(x-y)=11,4(x+y)+3(x-y)=9可得出x+y= ,x-y=
[(x+y)(x-y)-(x-y)²+2y(x-y)]÷4y
(2x-y)(2x+y)-2(3x-4y)(4y+3x)
x^4+x^3y+x^2*y^2+y^3x+y^4分解因式
(3x-y)(y+3x)-2(4x-3y)(4x+3y)
(x-3y)(y+2x)-(4y-3x)(3x+4y)计算