(x⁴﹢y⁴)²﹣﹙2x²y²﹚² 因式分解(初二)

问题描述:

(x⁴﹢y⁴)²﹣﹙2x²y²﹚² 因式分解(初二)

(x⁴﹢y⁴)²﹣﹙2x²y²﹚²
=(x⁴﹢y⁴-2x²y²)(x⁴﹢y⁴+2x²y²)
=(x²-y²)²(x²+y²)²
=[(x-y)(x+y)]²(x²+y²)²
=(x-y)²(x+y)²(x²+y²)²