What is the solution set for (x+1)squared=49? how do you get it?

(X+1)^2=49
it can be written as 
(x+1)^2=7^2
if two different base have same power then the bases would be equal of each other
x+1=+_7
x=7-1 or x= -7-1
x=6 or x= -8

It will take him 5 days