Can someone explain the steps please

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 expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex