（-3x二次方yz二次方）三次方×（-2xy三次方）z二次方）二次方=
问题描述：
（-3x二次方yz二次方）三次方×（-2xy三次方）z二次方）二次方=
答
（-3x²yz²)³ *[(-2xy³)z²]²
=-27x^6y³z^6 *(-2xy³z²)²
=-27x^6y³z^6 *(4x²y^6z^4)
=-108x^8y^9z^10