SOLUTION: Evaluate P(-1/2) if P(x) = 2x^4 + x^3 + 12

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Question 297650: Evaluate P(-1/2) if P(x) = 2x^4 + x^3 + 12
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute -%281%2F2%29 for all occurences of x and simplify
P%28x%29+=+2x%5E4+%2B+x%5E3+%2B+12
P%28-1%2F2%29=2%28-1%2F2%29%5E4%2B%28-1%2F2%29%5E3%2B12
P%28-1%2F2%29=2%281%2F16%29-%281%2F8%29%2B12
P%28-1%2F2%29=%281%2F8%29-%281%2F8%29%2B12
P%28-1%2F2%29=12