2(a-1)^2-12(a-1)+18 分解因式.

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2(a-1)^2-12(a-1)+18分解因式.2(a-1)^2-12(a-1)+18分解因式.2(a-1)^2-12(a-1)+18分解因式.2(a-1)^2-12(a-1)+18=2[(a-1)^

2(a-1)^2-12(a-1)+18 分解因式.
2(a-1)^2-12(a-1)+18 分解因式.

2(a-1)^2-12(a-1)+18 分解因式.
2(a-1)^2-12(a-1)+18
=2[(a-1)^2-6(a-1)+9 ]
=2(a-1-3)^2
=2(a-4)^2

2(a-1)^2-12(a-1)+18=2[(a-1)^2-6(a-1)+9]
=2(a-1-3)^2=2(a-4)^2

=2[(a-1)^2-6(a-1)+9]
=2(a-1-3)^2