作业帮a²-b²+2a+1因式分解
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/19 14:49:54
a²-b²+2a+1因式分解
a²-b²+2a+1因式分解
a²-b²+2a+1因式分解
a²-b²+2a+1
=(a+1)²-b²
=(a+b+1)(a-b+1)
a^2-b^2+2a+1
=(a+1)^2-b^2
=(a+b+1)(a-b+1)
a²-b²+2a+1=a²+2a+1-b²
=(a+1)²-b²
=(a+1+b)(a+1-b)
=(a+b+1)(a-b+1)
a²-b²+2a+1
=(a+1)²-b²
=(a+1+b)(a+1-b)
a^2-b^2+2a+1=（a^2+2a+1)-b^2=(a+1)^2-b^2=(a+b+1)*(a-b+1)