分解因式-25a2+50a的结果是(  ) A.-25a(a-2) B.25a(a-2) C.5a2(a-2) D.-5a2(a-2)

问题描述:

分解因式-25a2+50a的结果是(  )
A. -25a(a-2)
B. 25a(a-2)
C. 5a2(a-2)
D. -5a2(a-2)

-25a2+50a=-25a(a-2).
故选A.