If \( ab = 0 \), which of the following statements MUST be true?
If \( b \neq c \) and \( ab = ac \), which of the following statements must be true?
What are the solutions to \((x-3)(x-5)=0\)?
If \( a \neq 5 \) and
\[ a x = 5 x ,\]
then what is the value of \(x\)?