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Evaluate the Polynomial -2x^2 - x + 3 A. x = 2 B. x = -1

Evaluate the Polynomial -2x^2 - x + 3
A. x=2
B. x=-1
 
I am have real problems with this one.
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1 Answer

A.- -2*2^2 - 2 + 3 = -7
B.- -2*1^2 - 1 +3 = 0
Replace in the cases x by the given number and add them up.
B.- if x = -1, then the equation will have the value:
= -2*(-1^2)+1+3= 2

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