Which of the following can be determined from the residual plot shown Please help I’m not timed test and this is a quiz on nothing being taught

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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

What statement is true? 2x^2-9x+2=-1