SOLUTION: f(x)=5x^2-3x, what is the value of f(3)? i am practicing for the SAT i keep getting 36 and the book say the correct answer is 18

Algebra ->  Rational-functions -> SOLUTION: f(x)=5x^2-3x, what is the value of f(3)? i am practicing for the SAT i keep getting 36 and the book say the correct answer is 18      Log On


   

Question 28911: f(x)=5x^2-3x, what is the value of f(3)?
i am practicing for the SAT i keep getting 36
and the book say the correct answer is 18
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
You are correct. The book is wrong.
Cheers,
Stan H.