2y2-1/2x2能因式分解
问题描述:
2y2-1/2x2能因式分解
答
2y2-1/2x2
=1/2(4y²-x²)
=1/2(2y+x)(2y-x)
2y2-1/2x2能因式分解
2y2-1/2x2
=1/2(4y²-x²)
=1/2(2y+x)(2y-x)