Log equations with false answers Quiz
10 questions · easy to harder · Algebra 2 · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 5 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Solve log_2(3x − 1) = log_2(x + 5)- A) x = 3
- B) x = 6
- C) x = 2
- D) x = 5
2 Question 2
Solve log_3(4x − 2) = log_3(2x + 6)Type the answer.
3 Question 3
Solve log_2(x + 6) − log_2(x) = 2- A) x = 3
- B) x = 2
- C) x = 4
- D) x = 6
4 Question 4
Solve log(x + 9) − log(x) = 1Type the answer.
5 Question 5
Solve log_2(x) + log_2(x − 2) = 3- A) x = 2
- B) x = 5
- C) x = 4
- D) x = 3
6 Question 6
Solve log_3(x + 1) + log_3(x − 1) = 1Type the answer.
7 Question 7
Solve log_2(x) + log_2(x − 6) = 4- A) x = 4
- B) x = 8
- C) x = 11
- D) x = 6
8 Question 8
Solve log_2(x + 2) + log_2(x − 2) = 5Type the answer.
9 Question 9
Solve log_2(x − 1) + log_2(x + 1) = 3- A) x = 8
- B) x = 4
- C) x = 3
- D) x = 9
10 Question 10
Solve log_2(x + 3) + log_2(x − 3) = 4Type the answer.