# for ricrdo

**Sandra4tx**

Ricrdo

this is what my instructor wrote back:

Sandra, good job on finding the solutions to both equations, however, in #1 you have several intervals to consider with your function, ie, ( -inf,1),(1,2),(2,8), and (8,inf). Check and see if the functiion is + or - in these intervals

heres my work

**X^3 – 11x^2 + 26x – 16 < 0**

±1, ±2, ±4,±8,±16

X^3 – 11x^2 + 26x – 16/x -1

X^2 – 10x + 16

(x – 1) (x – 2) (x – 8)

**X = 1, 2, 8**

**Interval notation = No solution**

- 9 years ago
- 5

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Homework Help in Algebra5250

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