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Mathematics
Dutchess
15 November, 03:15
Find f (-2) if f (x) = -x^3+2x^2+x-1
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Pamela Ballard
15 November, 06:59
0
f ( - 2) = 13
Step-by-step explanation:
To evaluate f ( - 2) substitute x = - 2 into f (x)
f ( - 2) = - ( - 2) ³ + 2 ( - 2) ² + ( - 2) - 1
= - ( - 8) + 2 (4) - 2 - 1 = 8 + 8 - 2 - 1 = 13
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