SOLUTION: Evaluate each polynomial for x = −2. [4.3] (5a^5 − 2a^3 − 9a^2) + (2a^5 + a^3) + (−a^5 − 3a^2) I really need help on this

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: Evaluate each polynomial for x = −2. [4.3] (5a^5 − 2a^3 − 9a^2) + (2a^5 + a^3) + (−a^5 − 3a^2) I really need help on this      Log On


   

Question 370066: Evaluate each polynomial for x = −2. [4.3]
(5a^5 − 2a^3 − 9a^2) + (2a^5 + a^3) + (−a^5 − 3a^2)
I really need help on this
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I'll do one, you do the rest.
a=-2
Substitute for -2 wherever there is an a.
%285a%5E5-2a%5E3-9a%5E2%29=5%28-2%29%5E5-2%28-2%29%5E3-9%28-2%29%5E2
%285a%5E5-2a%5E3-9a%5E2%29=5%28-32%29-2%28-8%29-9%284%29
%285a%5E5-2a%5E3-9a%5E2%29=-160%2B16-36
%285a%5E5-2a%5E3-9a%5E2%29=highlight%28-180%29
Follow the same procedure for the other polynomials.