-16x^2y^3/20xy^427a^n+36^2/6a^nb^3-6x(a-x)^2/-24(x-a^3y)a^2+6a-9/a2-9
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-16x^2y^3/20xy^427a^n+36^2/6a^nb^3-6x(a-x)^2/-24(x-a^3y)a^2+6a-9/a2-9-16x^2y^3/20xy^427a^n+36^2/6a^n
-16x^2y^3/20xy^427a^n+36^2/6a^nb^3-6x(a-x)^2/-24(x-a^3y)a^2+6a-9/a2-9
-16x^2y^3/20xy^4
27a^n+36^2/6a^nb^3
-6x(a-x)^2/-24(x-a^3y)
a^2+6a-9/a2-9
-16x^2y^3/20xy^427a^n+36^2/6a^nb^3-6x(a-x)^2/-24(x-a^3y)a^2+6a-9/a2-9
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第二个式子没写错吧? 是36^2/6a^nb^3 吗?怎么感觉应该是3b^2/6a^nb^3
下列因式分解中,正确的是:.A.-2x^3-3xy^3+xy=-xy(2x^2-2y^2+1).B.-x^2-y^2=-(x+y)(x-y)C.16x^2+4y^2-16xy=4(2x-y)D.x^2)y+2xy+4y=y(x+2)^2
-16x^2y^3/20xy^427a^n+36^2/6a^nb^3-6x(a-x)^2/-24(x-a^3y)a^2+6a-9/a2-9
因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy-
x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值
已知a=x^+xy+y^ b=-3xy-x^求2A-3B
4m^3 - 16m^2 + 26 ;x(a-x)(a-y)-y(x-a)(y-a);已知x+y=3,xy=2,则多项式 -x^2y - xy^2 的值是多少;
1、 (2a-3b)^3 2、 (2x+y-3^2) 3、 (2x+y)(4x^2-2xy+y^2) 4、 (a+2)(a-2)(a^4+4a^2+16)5、 (x+y)(x-y)(x^2-xy+y^2)(-x^2-xy-y^2) 6、 (x^2+2xy+y^2)(x^2-xy+y^2)^2 共6题,
2x²y-3(2xy-xy)-xy
a/x-y,b/3y-3x,c/x^2-2xy+y^2通分
已知:A=X*X-3xy+y*y,B=2x*x+xy-3y*3y.求A+B,A-B,A+2B
计算,要有过程25x²-16y²=25x²+20xy+4y²=x³-25x=3x²+6xy+3y²=(x-y)²+4xy=(a+b)²+2(a+b)+1=(x²+y²)²-4x²y²=ab+a+b+1=(x-1)(x-2)-2(2-x)²=(a²+ab+b
已知A=8x^2y-6xy^2-3xy,B=7xy^2-2xy+5x^2y求A-B
|a-b| +|a|=_____(化简)x-xy=20,xy-y=-10,x-y=____,x+y-2xy=_____.
20xy^2+y^2-x+20y^3+xy-y因式分解
(12x^2y-8xy^2+16xy)/-3x+2y-4=?
(12x^2y-8xy^2+16xy)/-3x+2y-4=?
因式分解 1)1-8xy^2+16x^2y^4 2)0.01x^2-0.2xy+y^2 3)9a^4+6a^2+1
A=x^2+3xy-y^2,B=-2x^2+xy-y^2.当x