Question

aflati x din ecuatia: (x+1)^2=144

Answer 1

$(x+1)^2=144 \\ x+1= \sqrt{144 } \Rightarrow x+1=12 \Rightarrow x=12-1 \Rightarrow \boxed{x=11} \\ x+1=- \sqrt{144} \Rightarrow x+1=-12 \Rightarrow x=-12-1 \Rightarrow \boxed{x=-13} \\ S=\{-13;11\}$