因式分解:-4x^2y^2+4xy+2
问题描述:
因式分解:-4x^2y^2+4xy+2
答
-4x^2y^2+4xy+2
=-(4x^2y^2-4xy+1)+3
=3-(2xy-1)^2
=(根号3+2xy-1)(根号3-2xy+1)