PRC-2 · Chapter 1 · Question 8 of 45
What are the roots of the quadratic equation x^2 - 4x - 5 = 0?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: A) 5 and -1
Explanation
By factoring the equation into (x - 5)(x + 1) = 0, we can determine that the roots satisfying the equation are x = 5 and x = -1.
More Linear And Quadratic Equations MCQs
- Q10When formulating a linear equation from a word problem, which of the following is the recommended first step?
- Q11A rectangular plot has a length that is 4 meters greater than its width. If the total area is 96 square meters, which of the following…
- Q12Assuming a linear cost relationship, if 5 notebooks cost Rs. 150 and 8 notebooks cost Rs. 240, what is the cost of 1 notebook?
- Q13Solve the following linear equation for x: 3(x - 2) + 4 = 13.
- Q14In the expression 5x^2 + 8x - 3, what are the distinct components separated by the mathematical operation symbols called?
