Answer:
gcd(18, 54) = 18
Hope this helps have a great day/night :)
A suitable graphing calculator or spreadsheet program can plot this data for you. All you need to do is enter the data (and invoke the appropriate spreadsheet chart function).
STEP - BY - STEP EXPLANATION
Given:

Step 1
Suppose x= -3, then
x+ 3
Step 2
Divide the polynomial by (x+ 3)
Step 3
Determine the remainder and quotient from the above.
Quotient = x²+ x - 3
Remainder = 13
ANSWER
Quotient = x²+ x - 3
Remainder = 13