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andreyandreev [35.5K]
3 years ago
11

For f(x)=-2x^3-4x^2+3x-8 , use the remainder theorem to determine f(-1).

Mathematics
2 answers:
konstantin123 [22]3 years ago
6 0

Answer:

- 13

Step-by-step explanation:

Substitute x = - 1 into f(x) to obtain the remainder on dividing by (x + 1)

f(- 1) = - 2(- 1)³ - 4(- 1)² + 3(- 1) - 8

       = 2 - 4 - 3 - 8 = - 13

Thus the remainder on dividing f(x) by (x + 1) is - 13

yawa3891 [41]3 years ago
6 0

Hello

- 13

Explanation step by step:

x = - 1

f (x) = remainder to be divided by (x + 1)

f (- 1) = - 2 (- 1) ³ - 4 (- 1) ² + 3 (- 1) - 8

= 2 - 4 - 3 - 8 = - 13

<u> The rest of the division of f (x) / (x + 1) = -13</u>

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