因式分解 x方-x4次方+12

问题描述:

因式分解 x方-x4次方+12

x方-x4次方+12=(x²-4)(-x²-3)=-(x+2)(x-2)(x²+3)

x方-x4次方+12
=(3-x²)(4+x²)
=(根号3+x)(根号3-x)(4+x²)

x方-x4次方+12
=-(x4次方-x²-12)
=-(x²+3)(x²-4)
=(x²+3)(4-x²)
=(x²+3)(x+2)(x-2)

x方-x4次方+12
=-﹙x^4-x²-12﹚
=-﹙x²+3﹚﹙x²-4﹚
=-﹙x²+3﹚﹙x+2﹚﹙x-2﹚

x²-x⁴+12
=-(x⁴-x²-12)
=-(x²-4)(x²+3)
=-(x+2)(x-2)(x²+3)