Which of the number(s) below are potential roots of the function?
q(x) = 6x3 + 19x2 – 15x – 28

(the answer is not 6)

!

The potential roots are

Step-by-step explanation:

We are given,

The function .

Now, the factors of the constant 28 are 1,2,7,14 and 28.

And, the factors of co-efficient of highest degree i.e. 6 are 1,2,3 and 6.

So, dividing the factors of 28 by the factors of 6 gives us the potential roots,

So, according to the options, we have,

the least common denominator is 40