MCQ — Attempt all

1. What is the general form of a quadratic equation?
   • ax + b = 0
   • ax² + bx + c = 0, where a ≠ 0
   • ax³ + bx² + c = 0
   • a + b + c = 0
2. What are the roots of x² - 7x + 12 = 0?
   • 2 and 6
   • 3 and 4
   • -3 and -4
   • 1 and 12
3. What is the sum of the roots of 3x² - 5x + 2 = 0?
   • 5/3
   • -5/3
   • 2/3
   • -2/3
4. What is the product of the roots of 3x² - 5x + 2 = 0?
   • 5/3
   • -5/3
   • 2/3
   • -2/3
5. What is the discriminant D of x² + 4x + 4 = 0?
   • 0
   • 4
   • 8
   • 16
6. What is the nature of roots of x² + 2x + 5 = 0?
   • Real and unequal
   • Real and equal
   • No real roots
   • Two positive real roots
7. If a quadratic equation has two equal roots, what is the value of D?
   • D > 0
   • D = 0
   • D < 0
   • D = 1
8. If the roots of an equation are -1 and 4, which equation is correct?
   • x² - 3x - 4 = 0
   • x² + 3x - 4 = 0
   • x² - 4x - 1 = 0
   • x² + x + 4 = 0
9. The sum of two roots is 7. One root is 3. What is the other root?
   • 3
   • 4
   • 7
   • 10
10. What are the roots of x² - 4x + 1 = 0?
    • 2 ± √3
    • 4 ± √3
    • -2 ± √3
    • 1 ± √3