Section R.2
Quiz 1.5
Question: Determine the domain of the variable x in the following expression:
4x
x(x + 25)

 
    {x | x ≠ -25}
{x | x ≠ 0 and x ≠ -25}
{0}
{-25}
{0, -25}
{x | x ≠ 0}