SOLUTION: Find the value of the polynomial –x^2 + 10x – 10 when x = –3.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Find the value of the polynomial –x^2 + 10x – 10 when x = –3.      Log On


   

Question 89091: Find the value of the polynomial –x^2 + 10x – 10 when x = –3.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=-x%5E2%2B10x-10 Start with the given polynomial


f%28-3%29=-%28-3%29%5E2%2B10%28-3%29-10 Plug in x=-3


f%28-3%29=-%289%29%2B10%28-3%29-10 Raise -3 to the second power to get 9


f%28-3%29=-%289%29%2B-30-10 Multiply 10 by -3 to get -30


f%28-3%29=-49 Now combine like terms