Question

please answer this question ?​

Answer 1

f = x+1

g(f) = x^2 + 2x +5

g( x+1) = x^2 + 2x +1 +4

( x+1)^2 = x^2 + 2x +1

g( x+1) = ( x+1)^2 +4

Compare with a(x+1)^2 + b

a= 1

b= 4

So g(x) = x^2 +4