SOLUTION: PROBLEM: LET f(x)=3x^2-2x+1. FIND THE FOLLOWING: f(2) *** IN THIS MY TEACHER SAYS THE ANSWER IS 9... BUT IT SEEMS EVERYTIME I WORK IT OUT I COME UP WITH 7... PLEASE HELP AND EXP

Algebra ->  Real-numbers -> SOLUTION: PROBLEM: LET f(x)=3x^2-2x+1. FIND THE FOLLOWING: f(2) *** IN THIS MY TEACHER SAYS THE ANSWER IS 9... BUT IT SEEMS EVERYTIME I WORK IT OUT I COME UP WITH 7... PLEASE HELP AND EXP      Log On


   

Question 144458This question is from textbook College Algebra
: PROBLEM:
LET f(x)=3x^2-2x+1. FIND THE FOLLOWING:
f(2)
*** IN THIS MY TEACHER SAYS THE ANSWER IS 9... BUT IT SEEMS EVERYTIME I WORK IT OUT I COME UP WITH 7... PLEASE HELP AND EXPLAIN WHAT I AM DOING WRONG STEP BY STEP... THANKS :) This question is from textbook College Algebra

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=3x%5E2-2x%2B1
f(2) = 3*2*2 -2*2 +1
f(2) = 12 -4 +1
f(2) = 9