Answer:
43 is not a composite number
Step-by-step explanation:
43 is a prime number
So, u would start by expanding the bracket and ignoring the 2 at the moment.
(x+9)(x+9)= x^2-18x+81(using the foil method!
Then u would put 2 at the front to get:
2(x^2+18x+81)
= 2x^2+36x+162
The value of g in terms of other variables is 
Given the expression;
gh-f=g-h
We are to express g in terms of other variables as shown;
gh-f=g-h
Collect the like terms
gh - g = f + h
Factor out g
g(h - 1) = f + h
Divide both sides by h-1

Hence the value of g in terms of other variables is 
Learn more here: brainly.com/question/21406377