1.(-2a²b²)³2.-1/2xy*2、3x²y3.(-2x)(4xy-y²)

问题描述:

1.(-2a²b²)³
2.-1/2xy*2、3x²y
3.(-2x)(4xy-y²)

1、(-2a²b²)³=-8a^6 b^6 (积的乘方)
2.-1/2xy*2/3x²y=-1/3x³y³ (单项式乘以单项式)
3.(-2x)(4xy-y²)=-8x²y+2xy² (单项式乘以多项式)