The roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?

x = –1 and x =

x = -1 and x = 3

Step-by-step explanation:

x² – 2x – 3 = (x - 3) (x + 1) = 0

x = 3 or x = -1

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)