Answer:

Step-by-step explanation:
We are to factorize the expression
completely. To do this, we will apply the expression below;
The expression can be rewritten as 
To factorize the expression, we need to first factorize
first

The we will make
the subject of the formula as shown;




This last result gives the expansion of the expression
The answer would be x^3 + x^2 - x - 1
N=-3/20
In decimal form it would be n=-0.15
Number 14 is 61 and Number 16 is 36..,.