Sum and product of the roots Quiz
10 questions · easy to harder · Algebra 1 · 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.
- 4 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
Find the sum and product of the roots of x2 − 5x + 6 = 0.- A) −5
- B) 5, rs = 6
- C) 5
- D) −5, rs = −6
2 Question 2
Find the sum and product of the roots of x2 − 2x − 8 = 0.Type the answer.
3 Question 3
The equation with roots 2 and 4- A) 8
- B) 6
- C) 0
4 Question 4
The equation with roots 0 and 7Type the answer.
5 Question 5
Find the sum and product of the roots of 3x2 + 9x − 2 = 0.- A) 3
- B) 3, rs = 23
- C) −3
- D) −3, rs = −23
6 Question 6
Find the sum and product of the roots of x2 − 4x + 1 = 0.Type the answer.
7 Question 7
The equation with roots 12 and 4Type the answer.
8 Question 8
Find the sum and product of the roots of 4x2 − 8x + 3 = 0.Type the answer.
9 Question 9
Find the sum and product of the roots of 3x2 − 7x + 2 = 0.- A) −73, rs = −23
- B) −73, rs = 23
- C) 73
- D) 73, rs = 23
10 Question 10
The equation with roots 23 and 3Type the answer.