Question

How would I express G(X)=3x^2-2x-1 if the given domain is G(a+b)?

Answer 1

put in place of x= a+b

Answer 2

G(a+b) = (a+b)^2 -2(a+B) -1

Answer 3

3a^2 +3b^2 +6ab-2a-2b-1

Answer 4

Thankks;)