MCQEasy1 mark
Select the correct option for each of the following questions.
One of the roots of the quadratic equation x² - 8x + 5 = 0 is 7.3166. The root of the equation correct to 4 significant figures is
Topic: Quadratic equations
Previous-year question practice database
Try it
Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(b) 7.317
Explanation
7.3166 rounded to four significant figures is 7.317.
In words
7.317
More from Quadratic Equations
The nature of roots of quadratic equation 3x2 − 6x − 3 = 0 are :2026Solve the quadratic equation (x − 2)² − 5x − 3 = 0 and give your answer correct to 3 significant figures.2026The given quadratic equation 3x² + √7x + 2 = 0 has:2025Solve the following quadratic equation 2x² - 5x - 4 = 0 Give your answer correct to three significant figures.
(Use mathematical tables for this question)2025The roots of the quadratic equation px² - qx + r = 0 are real and equal if:2024Solve the following quadratic equation for x and give your answer correct to three significant figures :
2x² - 10x + 5 = 0
(Use mathematical tables if necessary)2024