Answer:
-1468955
Step-by-step explanation:
please don't forget to write down the correct questions and formula.
find f(x) of g(x)
f(x)=2x+1 and g(x)=x²-7
F of G = 2(x²-7)+1
= 2x²-14+1
= 2x²-13
according to the question x=-1212
so there for f(x) of g(x)=2(-1212)²-13
=-1468955
