a³-a²+1/4a 因式分解,快,
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a³-a²+1/4a因式分解,快,a³-a²+1/4a因式分解,快,a³-a²+1/4a因式分解,快,a³-a²+1/4
a³-a²+1/4a 因式分解,快,
a³-a²+1/4a 因式分解,快,
a³-a²+1/4a 因式分解,快,
a³-a²+1/4a
a(a²-a+¼)
=a(a-½)²
a³-a²+1/4a
=a(a^2-a+1/4)
=a(a-1/2)^2
a(a-1/2)的平方
原式=a(a-1/2)^2