Final Exam Review II

Factor x² - 81

• (x + 9)²

• (x - 9)²

• (x + 9)(x - 9)

• (x + 3)(x - 27)

Factor x² + 5x - 36

• (x + 6)(x - 6)

• (x + 9)(x + 4)

• (x + 12)(x - 3)

• (x + 9)(x - 4)

Factor x² - 12x + 36

• (x + 6)(x - 6)

• (x - 6)²

• (x - 12)(x - 3)

• (x - 9)(x + 4)

Factor 4x² - 8x

• 4x(x - 2)

• 4x(x - 4)

• 8x(4x - 1)

• x(4x - 8)

Factor 4x³ + 12x² + 8x.

• 4(x³ + 12x² + 8x)

• 4x(x² + 3x + 2)

• x(4x + 4)(x + 2)

• 4x(x + 2)(x + 1)

Factor 24 - 5x - x².

• (8 + x)(3 - x)

• (x - 3)(x + 8)

• -(x - 3)(x + 8)

• (x - 8)(x - 3)

Solve x² + 5x - 14 = 0

• x = -5, 14

• x = 2, -7

• x = 7, -2

• no solution

Solve (x + 3)² = 0

• x = 3

• x = -3

• x = 3, -3

• no solution

Simplify (x² - 25)/(x² + 10x +25)

• (x - 5)

• 1

• -1

• (x - 5)/(x + 5)

Simplify -3/(x² + 7x + 10) + 1/(x + 2).

• -2/(x² + 7x + 10)

• -3(x + 2)/(x² + 7x + 10)

• 1/(x + 5)

• -3/(x + 5)