分解因式:4x^2+4x^3y-4x^4-x^2y^2

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分解因式:4x^2+4x^3y-4x^4-x^2y^2
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分解因式:4x^2+4x^3y-4x^4-x^2y^2
分解因式:4x^2+4x^3y-4x^4-x^2y^2

分解因式:4x^2+4x^3y-4x^4-x^2y^2
4x²+4x³y-4x⁴-x²y²
=x²(4+4xy-4x²-y²)
=x²[4-(4x²-4xy+y²)]
=x²[4-(2x-y)²]
=x²(4+2x-y)(4-2x+y)
=-x²(2x-y+4)(2x-y-4)