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因式分解填空:x² y四次方 - x四次方 y²=?,4x³-36x=?,2 x四次方 -2=?
人气:317 ℃ 时间:2019-08-21 12:17:39
解答
x^2y^4-x^4y^2
=x^2y^2(y^2-x^2)
=x^2y^2(y+x)(y-x)
4x^3-36x
=4x(x^2-9)
=4x(x+3)(x-3)
2x^4-2
=2(x^4-1)
=2(x^2+1)(x^2-1)
=2(x^2+1)(x+1)(x-1)
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