If the factors of a polynomial are x-5 and x+2, what values of x make that a polynomial 0?
a. 5 and 2
b.-5 and 2
c.-5 and -2
d.5 and -2

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days