Question 30083
f(a)=2a-1 If this is true, then that part of the problem (f(a))is solved! The answer is 2a-1.

G(a)= a2 If this is true then the variable g and a or the same thing. I hope that that is "a" to the second notation! 

the answer to this problem is g(2a-1)or

2ga-g   or

2a2<---(second notation)-a