SAT: Equivalent expressions Quiz
10 questions · easy to harder · SAT Math · 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.
- 10 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
Which of the following is equivalent to 3(2x − 5) + 4x?- A) 2x − 15
- B) 6x − 11
- C) 10x − 15
- D) 10x − 5
2 Question 2
Which expression is equivalent to x5x2?- A) x7
- B) x3
- C) x2.5
- D) 1x3
3 Question 3
Which expression is equivalent to 2x(3x − 4) − x2?- A) 5x2 − 8x
- B) 5x2 − 4
- C) 7x2 − 8x
- D) 6x2 − 9x
4 Question 4
Which expression is equivalent to (3x)2?- A) 3x2
- B) 6x2
- C) 9x
- D) 9x2
5 Question 5
Which of the following is equivalent to (2x + 1)(x − 3)?- A) 2x2 − 3
- B) 2x2 − 5x − 3
- C) 2x2 − 7x − 3
- D) 2x2 − 5x + 3
6 Question 6
Which of the following is equivalent to (x − 5)2?- A) x2 − 25
- B) x2 − 10x + 25
- C) x2 − 10x − 25
- D) x2 − 5x + 25
7 Question 7
Which of the following is equivalent to 4(x + 2) − 2(x − 3)?- A) 2x + 2
- B) 2x + 5
- C) 2x + 14
- D) 6x + 2
8 Question 8
Which expression is a factored form of x2 + 5x + 6?- A) (x + 1)(x + 6)
- B) (x + 5)(x + 1)
- C) (x − 2)(x − 3)
- D) (x + 2)(x + 3)
9 Question 9
Which expression is a factored form of 4x2 + 6x?- A) 2x(2x + 3)
- B) 2x(2x + 6)
- C) 4x(x + 6)
- D) 2(2x2 + 6x)
10 Question 10
Which expression is equivalent to x2 − 9x + 3, for x > −3?- A) x + 3
- B) x − 3
- C) x2 − 3
- D) x − 9