Question

4. Let $f(x) = 2x^3 - 9x^2 - 38x + 21$. (a) List all possible rational roots of $f(x)$. (b) Factor $f(x)$ completely. (c) Sketch a rough graph of $f(x)$. Make sure the x-intercepts are labeled.

          4. Let $f(x) = 2x^3 - 9x^2 - 38x + 21$.

(a) List all possible rational roots of $f(x)$.

(b) Factor $f(x)$ completely.

(c) Sketch a rough graph of $f(x)$. Make sure the x-intercepts are labeled.

Added by Juan Carlos R.

Precalculus with Limits

Ron Larson 2nd Edition

Instant Answer

Solved by Expert Kathleen Carty

04/18/2023

Step 1

f(x) = 2x3 - 9x2 - 38x + 21 There are six rational roots of f(x). They are 2, 3, 5, 7, 11, and 13. Show more…

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Question

4. Let $f(x) = 2x^3 - 9x^2 - 38x + 21$. (a) List all possible rational roots of $f(x)$. (b) Factor $f(x)$ completely. (c) Sketch a rough graph of $f(x)$. Make sure the x-intercepts are labeled.

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