分解因式:2a(x^2+1)^2-2ax^2

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分解因式:2a(x^2+1)^2-2ax^2
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分解因式:2a(x^2+1)^2-2ax^2
分解因式:2a(x^2+1)^2-2ax^2

分解因式:2a(x^2+1)^2-2ax^2
2a(x^4+X^2+1)

2a(x^2+1)^2-2ax^2
=2a(x^4+2x^2+1)-2ax^2
=2ax^4+4ax^2+2a-2ax^2
=2ax^4+2ax^2+2a
=2a(x^4+x^2+1)
有理数范围内的因式分解就到此为止

=2a(x^4+2x^2+1)-2ax^2
=2a(x^4+2x^2+1-x^2)
=2a(x^4+x^2+1)