-x(a-x)(x-b)-mn(a-x)(b-x)各项的公因式是(  ) A.x(a-x) B.-(a-x)(b-x) C.x(b-x) D.-m(n-1)(a-x)(b-x)

问题描述:

-x(a-x)(x-b)-mn(a-x)(b-x)各项的公因式是(  )
A. x(a-x)
B. -(a-x)(b-x)
C. x(b-x)
D. -m(n-1)(a-x)(b-x)

-x(a-x)(x-b)-mn(a-x)(b-x)各项的公因式是-(a-x)(b-x).
故选:B.