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