Of the three types of health risk factors, the one that we have the most control over is

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

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

The square root of 9x plus 7 plus the square rot of 2x equall to 7