Posted by **confused** on Thursday, May 24, 2007 at 10:34pm.

Given f(x) = 5x2 – 3x + 1, find f(–2).

so would this be 5(-2*-2) -3(-2)+1

answer being 15

not correct

(I assume looking at your substitution that the first term is 5x^2 or 5x²)

f(x) = 5x^2 – 3x + 1

f(-2) = 5(-2)^2 - 3(-2) + 1

=5(4) + 6 + 1

=27

## Answer This Question

## Related Questions

- precalculus - can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6...
- precalculus - Are my answers correct if not which are right? Find the second ...
- can you check my answers precalculus - can you check my answers? Find Pk + 1 if ...
- Composition of Functions - 1. Find (f·g)(x) where f(x) = 1/x²+3 and g(x) = ?x-2...
- Math help please check - Add or Subtract for #3-4 3. (2x2 + 6x + 1) + (–7x2 + 2x...
- Algebra - I need help in finding the remainder when you divide 5x2 + 4x -40 by x...
- calculus - Evaluate the following integrals using the given substitutions. (a) (...
- Algebra - From 7x2 – 4x subtract 5x2 + 2x. I do not understand what order to ...
- algebra - would this be correct -3squared + ( (5 (8-6) ) / 2 + 45 ) / 5 =9 + ((...
- algebra - would this be correct -3squared + ( (5 (8-6) ) / 2 + 45 ) / 5 =9 + ((...

More Related Questions