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Very confused help me (need to show work)

Very confused help me (need to show work)-example-1

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Answer: a). 7 b). 1 c). 1

Explanation:

a). Sub x =-1

2 x (-1)^2 - 4 x (-1) + 1

2 x 1 - 4 x -1 + 1

2 + 4 + 1

= 7


b). Sub x = 2

2 x (2)^2 - 4 x (2) + 1

2 x 4 - 4 x 2 + 1

8 - 8 + 1

= 1


c). Sub x = 0

2 x (0)^2 - 4 x (0) + 1

2 x 0 - 4 x 0 + 1

0 - 0 + 1

= 1

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