n+2=√(9+n²+2n+1) ..
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 04:31:54
![n+2=√(9+n²+2n+1) ..](/uploads/image/z/14698806-6-6.jpg?t=n%2B2%3D%E2%88%9A%289%2Bn%26%23178%3B%2B2n%2B1%29+..)
x)6}1KR;OMZ(OPSAO&H~
t H٢*
iԅrut
m
*L38F 1 NGj
n+2=√(9+n²+2n+1) ..
n+2=√(9+n²+2n+1) ..
n+2=√(9+n²+2n+1) ..
n+2=√(9+n²+2n+1)
(n+2)²=9+n²+2n+1
n²+4n+4=9+n²+2n+1
n²+4n+4-9-n²-2n-1=0
2n-6=0
2n=6
n=3