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Nikolay [14]
3 years ago
15

Is the binomial x-9 a factor of 4x^3-28^2-36x-27​

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0

Answer:

No

Step-by-step explanation:

If (x - 9) is a factor then x = 9 is a root and f(9) = 0

f(x) = 4x³ - 28x² - 36x - 27, hence

f(9) = 4(9)³ - 28(9)² - 36(9) - 27

     = 2916 - 2268 - 324 - 27 = 297

Since f(9) ≠ 0 then (x - 9) is not a factor of f(x)

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After 8 examinations, Kacey's average was 55. Her next result increased her average to 60. What was the next score?
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Multiply the average by the number of exams to find total points:

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4 years ago
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