PRC-2 · Chapter 1 · Question 35 of 45
What are the roots of the quadratic equation x^2 - 7x + 10 = 0?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: A) x = 2, 5
Explanation
Factoring the equation (x - 2)(x - 5) = 0 gives roots x = 2 and x = 5. Note that -2 and -5 add to -7 and multiply to +10.
More Linear And Quadratic Equations MCQs
- Q37If two lines represented by linear equations have the exactly same slope but different y-intercepts, they are:
- Q38Solve the following system of linear equations for x and y: x + y = 10 and x - y = 2.
- Q39What is the degree of the polynomial expression: 4x^3 + 2x^2 - x + 1?
- Q40In a coordinate geometry plane, the vertical axis is known as the:
- Q41If you multiply (x + 3) by (x - 3), the resulting expression is: