x^4+x²y²+y^4 因式分解

问题描述:

x^4+x²y²+y^4 因式分解

x^4 + x"y" + y^4
= ( x" )" + 2x"y" + ( y" )" - x"y"
= ( x" + y" )" - ( xy )"
= ( x" + xy + y" )( x" - xy + y" )