Question

Solve (z + 6)2 = 5.

Answer 1

it's B

Answer 2

b

Answer 3

@hidy @akshay1234

Please do not just give the answer. Provide an explanation that guides the user to the solution.

Answer 4

okay
we have (z+6)^2=5 --> sqrt((z+6)^2)=sqrt(5)
--> abs(z+6)=sqrt (5) (because we don't know the sign of z+6)
so we have two cases ( |a|=b --> a=b or a=-b)
z+6=sqrt(5) or z+6=-sqrt(5)
i.e. z=sqrt(5)-6 or z=-sqrt(5)-6 those are the solutions of your equation.