因式分解:(1)25a-5a2;(2)(x-y)2+4xy.
因式分解:(x+y)(x+y+2xy)+(xy+1)(xy-1)=______.
3x^2y^2-12xy^4(因式分解)
(xy-1)平方+(x+y-2xy)(x+y-2)因式分解
因式分解:(x+y-2xy)(x+y-2)+(1-xy)2=______.
因式分解(xy-x)+(1-y)
x^2y-7xy+6y (因式分解)
因式分解2x²y-xy-3y (-a+b)+c²(a-b)
因式分解(1)a2-4b2+a-2b(2)x2-2x-15.
谢谢(关于因式分解)2x²+xy-y²-4x+5y-6x²-2x-14(x-y+1)+y(
一、因式分解.(1)4x²-y²(2)a³-10a2²+25a二、计算.(1)(
-3x^2-3y^2+6xy(因式分解)
(x^2 y一4y)/(xy一2y)因式分解