1.x(x-y)-(x-3)(x+3) 2.(a^2+b^2)(a+b)(a-b) 3.(a-2b+3c)(a+2b-3c) 4.(x+y-z)(x-y+z) 5.(x^8+y^8)(x^4+y^4)(x^2+y^2)(x+y)(x-y)
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(3x-y)(3y+x)-(x-y)(x+y)
[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
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
x(x-y)2-(y-x)3
(y-x)+x(x-y)^3-(y-x)^4 因式分解
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
1.(x+2)^2-(x+y)^32.(x-y)^2-(x-y)^33.(x-y)^2-(y-x)^3
化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-x)
1.) 5/x-x+12-2x/2x-2x 2)y/2x-2y/3x
3^x+2x=y,x
3x的平方×(x-y)+6x(y-x)
因式分解3x^2(x-y)+6x(y-x)
1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2}
计算 x(x-3y)
推倒公式:(x+y)(x*x-3x+y*y)=x*x*x+y*y*y怎么做.
因式分解:a(x-y)^2+b(y-x)^3 4(x-y)^2+8(y-x)(x+y)1.a(x-y)^2+b(y-x)^3 2.4(x-y)^2+8(y-x)(x+y)