The number is 0.
Step-by-step explanation:
The steps to be followed for synthetic-divisions are:
Step 1:
The 1st row is filled with numbers taken from a polynomial equation.
Step 2:
The 2nd row is to be filled with required numbers to solve the answer row.
Step 3:
Now to fill the second row, just write down the 1st number in the 1st row in the answer row as it is.
Step 4:
Then the constant (in this problem, it is -2 ) is multiplied with the 1st number in answer row = (1*-2 =-2)
Step 5:
The obtained number is entered in the 2nd row.
Step 6:
Next, do addition of 1st and 2nd row = (-2) + (-2)= -4
Step 7:
Repeat the steps until the end of answer row. (-4*-2= 8) , (-8)+(8)=0 , (0*-2=0) , (5+0= 5)
Solution:
-2| 1 -2 -8 5
-2 8 0
__________
1 -4 0 5