分解因式得:(3x+2)(x﹣2)=0,
可得3x+2=0或x﹣2=0,
解得:x1=﹣ 23 ,x<
若2x-35=a0+a1x+a2x2+a3x3+a4x4+a5x5,则 a1+2a2+3a3+4a4+5a5等于( )
- Excuse me. Do you know __________?
- Well, go along this street and turn right. There’s one on the left.
将封口的空矿泉水瓶慢慢压入水中,直到完全浸没。下列对矿泉水瓶受到的浮力分析错误的是()