因式分解：-3x^3+6x^2y-3xy^21.-3x^3+6x^2y-3xy^22.4a^2+4a+13.(x^2-3)^2-12(x^2-3)+36

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因式分解：-3x^3+6x^2y-3xy^21.-3x^3+6x^2y-3xy^22.4a^2+4a+13.(x^2-3)^2-12(x^2-3)+36

因式分解：-3x^3+6x^2y-3xy^21.-3x^3+6x^2y-3xy^22.4a^2+4a+13.(x^2-3)^2-12(x^2-3)+36
因式分解：-3x^3+6x^2y-3xy^2
1.-3x^3+6x^2y-3xy^2
2.4a^2+4a+1
3.(x^2-3)^2-12(x^2-3)+36

因式分解：-3x^3+6x^2y-3xy^21.-3x^3+6x^2y-3xy^22.4a^2+4a+13.(x^2-3)^2-12(x^2-3)+36
-3x^3+6x^2y-3xy^2
=-3x(x^2-2xy+y^2)
=-3x(x-y)^2
4a^2+4a+1
=(2a+1)^2
(x^2-3)^2-12(x^2-3)+36
=[(x^2-3)-6]^2
=(x^2-9)^2
=(x+3)^2(x-3)^2

1.-3x^3+6x^2y-3xy^2
=-3x(x^2-2xy+y^2)
=-3x(x-y)^2
2.4a^2+4a+1
=(2a+1)^2
3.(x^2-3)^2-12(x^2-3)+36
=[(x^2-3)-6]^2
=[(x+3)(x-3)]^2

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