因式分解:-1/2n²+2m²
问题描述:
因式分解:-1/2n²+2m²
答
-1/2n²+2m²
=-1/2(n²-4m²)
=-1/2(n+2m)(n-2m)
因式分解:-1/2n²+2m²
-1/2n²+2m²
=-1/2(n²-4m²)
=-1/2(n+2m)(n-2m)