Question

Given the function g(m) = √— m − 4 , solve g(m) = 2

Answer 1

 2 = $\sqrt{-m}$ - 4

+4         +4

6  =   $\sqrt{-m}$

6²  =   ($\sqrt{-m}$ )²

36 = |-m|

36 = +/-m

36 = m    , -36 = m            +36 is not valid because m ≤ 0

Answer: -36