I need help please and quick because I’m getting a migraine because I’ve been thinking so much

Which of the following properties can be used to show

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319