Answer:
x^2-2x+1
Step-by-step explanation:
f(x)=x^2
g(x)=x-1
f(g(x))=f(x-1)=(x-1)^2=x^2-2x+1
5
Y =k√x
12 = 3k
k = 4
now X = 1\2
y = 4√1/2
y = 2√2