Answer:
1/15
Step-by-step explanation:
<u>Answer: </u>
Sum of the roots of the polynomial 
<u>Solution:</u>
The general form of cubic polynomial is
---- (1)
If we have any cubic polynomial
having roots 
Sum of roots
=
---(2)
From question given that,
--- (3)
On comparing equation (1) and (3), we get a = 1, b = 2, c = -11 and d = -12
Hence the sum of roots using eqn 2 is given as,
=
= -2
Hence the sum of the roots of the polynomial 
The x terms add up to 4x and the numbers add up to 12
4x + 12 = 4(x + 3)
Its C
<span>False.
Experimental probability is based on doing trials.</span>
Step-by-step explanation:
wait, I will look my lecture last year