x的4次方加上4y的4次方(因式分解,

学习 时间:2026-10-10 04:59:30 阅读:8418
x的4次方加上4y的4次方(因式分解,

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2026-10-10 04:59:30

x^4+4y^4 =x^4+4y^4+4x^2y^2-4x^2y^2 =(x^2+2y^2)^2-4x^2y^2 =(x^2+2y^2-2xy)(x^2+2y^2+2xy) 用添项法!

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  • 唠叨的龙猫
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    2026-10-10 04:59:30

    x^4+4y^4 =x^4+4y^4+4x^2y^2-4x^2y^2 =(x^2+2y^2)^2-4x^2y^2 =(x^2+2y^2-2xy)(x^2+2y^2+2xy) 用添项法!

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