SOLUTION: Evaluate each function for the value specified. f(x) = 3x^3 + 2x^2 - 5x + 3; find f(3). What are the steps to solving this equation? I would appreciate any help.

Algebra ->  Graphs -> SOLUTION: Evaluate each function for the value specified. f(x) = 3x^3 + 2x^2 - 5x + 3; find f(3). What are the steps to solving this equation? I would appreciate any help.      Log On


   

Question 260138: Evaluate each function for the value specified. f(x) = 3x^3 + 2x^2 - 5x + 3; find f(3). What are the steps to solving this equation? I would appreciate any help.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=3x%5E3%2B2x%5E2-5x%2B3 Start with the given equation.


f%283%29=3%283%29%5E3%2B2%283%29%5E2-5%283%29%2B3 Plug in x=3.


f%283%29=3%2827%29%2B2%283%29%5E2-5%283%29%2B3 Cube 3 to get 27.


f%283%29=3%2827%29%2B2%289%29-5%283%29%2B3 Square 3 to get 9.


f%283%29=81%2B2%289%29-5%283%29%2B3 Multiply 3 and 27 to get 81.


f%283%29=81%2B18-5%283%29%2B3 Multiply 2 and 9 to get 18.


f%283%29=81%2B18-15%2B3 Multiply -5 and 3 to get -15.


f%283%29=87 Combine like terms.