-2a(a³-3a+1)计算

-2a(a³-3a+1)计算
-2a(a³-3a+1)计算

-2a(a³-3a+1)计算
-2a(a³-3a+1)
原式=-2a^3+6a^2-2a

原式=-2a^4+6a²-2a

-2a(a³-3a+1)
=-2a^4+6a^2-2a


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-2a(a³-3a+1)
=-2a^3+6a^2-2a

-2a^3+6a^2-2a