Precalc Chapter 2 Review

Is this division problem worked correctly?

• This is correct!
• This is incorrect!

Use polynomial long division: (3x³ + 5x - 1) ÷ (x + 1)

• 3x³ - 3x² + 8x - 9

• 3x³ + 3x² + 8x + 7

(2x³ - 5x - 7) ÷ (x - 2)

• 2x³ - 4x² + 3x - 13

• 2x³ + 4x² +3x - 1

• 2x² - 4x + 3 - 13/x-2

• 2x² + 4x + 3 - 1/x-2

What is the proper way to write the answer for the following problem?

• 2x³-x²-25x+12

• 2x⁴-x³-25x²-12x+0

• 2x³-x²-25x-12

• 2x⁴-x³-25x²-12x-0

Use synthetic division

• x - 7

• x² - 7

• x + 7

• x² + 3x - 54

• 2x² + 2x - 4  R(-12)

• 2x² - 2x + 6  R(-23)

• 2x² - 2x + 8  R(-20)

• 2x² - 4x + 1  R0

What is the remainder of (x³ - 5x² - 8x +1) ÷ (x + 1)?

• -13

• 1

• 3

Q. Which of the following is a COMPLETE  list of all possible Rational Zeros?

f(x) = x³ + 2x² - 6x + 8

• ±1, ±8

• ±1, ±2, ±4

• ±1, ±2, ±4, ±8

• 1, 2, 4, 8

Q. Which of the following is a COMPLETE  list of all possible Rational Zeros?

f(x) = 3x³ + 2x² - 6x + 7

• ±1, ±7, ±1/3, ±7/3

• ±1, ±3, ±7, ±7/3

• ±1, 7

• ±1, ±3, ±7, ±1/3, ±7/3