Final exam practice

An object is dropped from the roof of a building. The height of the object can be modeled by the equation -16x² + 44 where x is the time since dropping the object. How high was the object when it was dropped?

• 44 feet

• -16 feet

• 0 feet

• 2 feet

Which of the following polynomials has (x + 3) as a factor?

• x² + 9

• x² + 3x + 9

• 2x² + 3x - 9

• 2x² - 3x - 9

What is the greatest common factor of 4x⁵y¹² - x¹⁵y + 8x¹⁰y⁶

• x⁵y⁶

• x⁵y

• 1

• 8x¹⁵y¹²

x²+ 4x + 3

• (x + 2)(x + 2)

• (x + 4)(x + 1)

• (x² + 3)(x + 1)

• (x + 3)(x + 1)

Which product of factors is equivalent to x² + 4x + 4

• (x + 4)²

• (x + 4)(x + 1)

• (x + 2)²

• 4(x + 1)(x + 1)

Which of the following is a factor of 6x² - 2x - 4

• 3x + 1

• 3x - 1

• 3x + 2

• 3x - 2

Which equations shows the complete factorization of 8x² + 50

• (8x - 5)(x + 10)

• 8(x - 2)(x + 5)

• 2(4x² + 25)

• 2(2x - 5)(2x + 5)

Factor the polynomial x² - x - 20

• (x + 5)(x - 4)

• (x + 4)(x - 5)

• (x + 10)(x - 2)

• (x - 20)(x + 1)

Factor the polynomial x² - 16

• (x -1)(x + 16)

• (x +2)(x - 8)

• (x+ 4)(x - 4)

• (x - 4)(x - 4)

Factor 16x² - 9

• (4x - 3)(4x + 3)

• 4x - 3

• 4x + 3

• (4x - 3)(4x - 3)