Question

多項式-8m²n³+10m³n²+2m²n²被-2m²n²除，所得的商為

1. A.
   4n+5m-1
2. B.
   4n-5m+1
3. C.
   4n-5m-1
4. D.
   4n+5m

Answer 1

C
分析：被除數(shù)提取公因式后除以除數(shù)，約分即可得到商．
解答：根據(jù)題意列得：（-8m²n³+10m³n²+2m²n²）÷（-2m²n²）=2m²n²（-4n+5m+1）÷（-2m²n²）=4n-5m-1．
故選C
點評：此題考查了因式分解的應(yīng)用，比較簡單，是一道基本題型．