In the polynomial below, what number should replace the question mark to
produce a difference of squares?
2+2х-36

A. 36
B. 0
C. 12
D. 6

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

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?