作业帮若a^2+2a=,则2a^2+4a+1=_____.【当m=1时,-2m^2-[-4m^2+(-m^2)]的值为_____.】
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/15 14:07:36
![若a^2+2a=,则2a^2+4a+1=_____.【当m=1时,-2m^2-[-4m^2+(-m^2)]的值为_____.】](/uploads/image/z/14267381-5-1.jpg?t=%E8%8B%A5a%5E2%2B2a%3D%2C%E5%88%992a%5E2%2B4a%2B1%3D_____.%E3%80%90%E5%BD%93m%3D1%E6%97%B6%2C-2m%5E2-%5B-4m%5E2%2B%28-m%5E2%29%5D%E7%9A%84%E5%80%BC%E4%B8%BA_____.%E3%80%91)
若a^2+2a=,则2a^2+4a+1=_____.【当m=1时,-2m^2-[-4m^2+(-m^2)]的值为_____.】
若a^2+2a=,则2a^2+4a+1=_____.【当m=1时,-2m^2-[-4m^2+(-m^2)]的值为_____.】
若a^2+2a=,则2a^2+4a+1=_____.【当m=1时,-2m^2-[-4m^2+(-m^2)]的值为_____.】
若a^2+2a=X（假如）,
则2a^2+4a+1=2（a^2+2a）+1
=2X+1
当m=1时,-2m^2-[-4m^2+(-m^2)]
=-2-[-4+（-1）]
=3