A function f has the property that f(3x-1)=x^2+x+1 for all real numbers x. What is f(5)?
This is the most helpful site on the web thank you all so much
f (3x - 1) = f (5) which implies that
3x - 1 = 5 add 1 to both sides
3x = 6 divide both sides by 3
x = 2
So.....subbing this value into the function, we have
(2)^2 + (2) + 1 = 4 + 2 + 1 = 7
+267 
