(-2b)²a³(-a)²+(-2ab)²(-a)³b(-4a²b)³(bc²)²-(2a的四次方b³c²)(-a²b²)c²
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(-2b)²a³(-a)²+(-2ab)²(-a)³b(-4a²b)³(bc²)²-(2a的四次方b³c²)(-a²b²)c²
(-2b)²a³(-a)²+(-2ab)²(-a)³b
(-4a²b)³(bc²)²-(2a的四次方b³c²)(-a²b²)c²
(-2b)²a³(-a)²+(-2ab)²(-a)³b(-4a²b)³(bc²)²-(2a的四次方b³c²)(-a²b²)c²
(-2b)²a³(-a)²+(-2ab)²(-a)³b
=4b²a³a²-4a²b²a³b
=4a^5·b²-4a^5·b³
=4a^5·b²(1-b)