問題詳情:
化簡:3x2-5x一6-7x2-6x+15
【回答】
3x2-5x–6-7x2-6x +15
=(3-7)x2+(-5-6)x +(-6+15)·············································· 1分
= -4x2-11 x +9················································································· 2分
知識點:整式的加減
題型:計算題