The factor theorem states that if (x-a) is a factor of P(x) the P(a) = 0 so we can write, for this polynomial:
2^(4) - 3(2)^3 + A(2)^2 - 6(2) + 14 = 0
16 - 24 + 4A - 12 + 14 = 0
4A = -16+24 + 12 - 14 = 6
A = 6/4 = 1.5
Find the LCM between the denominators.
The LCM is 36
Divide he LCM for the denominators, then multiply the result for the numerator.

You get 25/36 and you can't simplify it
Answer:
X = 30
Step-by-step explanation:
6x5=30
When I think