Question

Solve the equation using the square root method.

Answer 1

\[\sqrt{x+1}=4\]

Answer 2

Okay, so we can square both sides to cancel the radical on the left :
\[\left( \sqrt{x+1} \right)^{2}=4^2\]
which gives us
x+1=16 take the 1 across by subtraction and boom!
x=15

Answer 3

i dont know whats sqrt method but this can be olved by squaring both sides
x+1=16
x=15

Answer 4

Oops wrote it wrong

Answer 5

Nvm. Thank you so much!