分解因式 x^4-3x²y²+2y^4
问题描述:
分解因式 x^4-3x²y²+2y^4
答
x^4-3x²y²+2y^4
=(x²-2y²)(x²-y²)
=(x-√2y)(x+√2y)(x-y)(x+y)