Question

因式分解下列各式：(1)ay^2+a^2xy-2xy-2ax^2 ； (2)2(xy-2)-(8x-y)

Answer 1

y(ay-2x)+ax(ay-2x)=(ay-2x)(y+ax);

2xy-8x-(y-4)=2x(y-4)-(y-4)=(y-4)(2x-1)