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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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Francisco E. | Francisco; Civil Engineering, Math., Science, Spanish, Computers.Francisco; Civil Engineering, Math., Sci...
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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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