CIA 1 Review 1

Find the partial fraction decomposition...

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Find the partial fraction decomposition of  $\frac{-x+34}{x^2-3x-4}$  

•  $\frac{6}{x-4}+\frac{7}{x+1}$  

•  $\frac{6}{x-4}-\frac{7}{x+1}$  

•  $\frac{6}{x+4}+\frac{7}{x-1}$  

•  $\frac{6}{x+4}-\frac{7}{x-1}$  

Find the partial fraction decomposition...

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• None of the above

What are the zeros of this polynomial function?

• x = –2, x = 1, x = 4

• x = –4, x = 0, x = 1, x = 2

• x = –2, x = –1, x = 0, x = 4

• x = –4, x = –1, x = 2

Find the zeros of the function y = (x + 2)(x – 3)(3x – 5).

• x = –2, x = 3, x = 5/3

• x = 2, x = –3, x = –5/3

• x = –2, x = 3, x = 3/5

• x = 2, x = –3, x = –3/5

• 4, 6

• –6, –4, 4

• –2, 2, 6

• –2, –3, 2, 3

• 2x³ + 3x + (7/x-4)
• 2x² + 3x + 8 + (7/x-4)
• 2x² + 3x + 8
• 2x² - x + 10 + (6/x-4)

Cam divided (x⁴ + 3x² - 4x - 2) by factor of (x-2) using synthetic division. His work is shown above. Which best describes his mistake?

• Cam wrote the remainder incorrectly.

• Cam did not use a zero place holder for the x³ term.

• Cam added instead of subtracting the rows.

• Cam should have used -2 as his division since the factor was x-2.

(3x³ + 5x - 1) ÷ (x + 1)

• 3x³ - 3x² + 8x - 9
• 3x² - 3x + 8 - 9/x+1
• 3x² + 3x + 8 + 7/x+1
• 3x³ + 3x² + 8x + 7