Answer:
In the given expression
,
a = 2 , b = - 6 and c = 4
Step-by-step explanation:
Here, the given polynomial is given as: 
Now, to find the missing values of the constants a , b and c factorize the given polynomial.
We have:

or,
2 x (x - 6)(x + 4) = ax (x + b)(x + c)
Comparing the two given expressions, we get
2 x= a x
x + (- 6) = x + b
x + c = x + 4
⇒ a =2, b = - 6 and c = 4
Hence, in the given expression
, a =2, b = - 6 and c = 4.