Algebra 2 Final Exam Review - Semester 2

Factor 25x² - 81?

• (5x - 9)(5x + 9)

• (5x - 9)(5x - 9)

• (5x + 9)(5x + 9)

• Cannot be factored

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3
• 2, 3
• 2, -3
• -2, -3

Tags

CCSS.HSA-REI.B.4B

What is the expression that represents the discriminant in a quadratic equation.

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Simplify: i²

• 1

• –1

• –i

• 0

Simplify: (3 – i) + (–2 – 5i)

• –6 + 5i²

• 1 + 6i

• –1 + 6i

• 1 – 6i

Simplify: (5 + 2i)(5 – 2i)

• 21

• 23

• 29

• 25 – 4i

Rewrite log₂8 = 3 in exponential form

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Tags

CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

Tags

CCSS.HSF.BF.B.5

Solve for x: log_x 25 = 2

• 5

• -5

• 1/5

• -1/5

Solve for x: 3^x = 27

• 2

• 4

• 3

• 5