Answer:
a2 - 3ab + b2
Step-by-step explanation:
just saying the 2s are squared :)
Answer:
Firstly
f(x)=3x-2=y then
Interchanging x and y we get
x=3y-2
x+2=3y
y=(x+2)/3
f-1(x)=(x+2)/3
f-1(13)=(13+2)/3
f-1(13)=5
E pi and F pi and (for third one) are correct answers