Quadratic equations

Written by Hassan Raza (Mathematics)

Class 10 · Mathematics · 10 questions

Name: ____________________   Date: ____________

1. Solve x² - 5x + 6 = 0.

   • A x = 2 or 3
   • B x = 1 or 6
   • C x = 5 or 1
   • D x = -2 or -3

2. The roots of x² = 16 are:

   • A 4 and -4
   • B -4 only
   • C 8
   • D 4 only

3. The quadratic formula gives x equal to:

   • A (b plus or minus 2ac) / 4
   • B -b / 2a only
   • C (-b plus or minus the square root of (b² - 4ac)) / 2a
   • D (-b plus or minus the square root of (b² + 4ac)) / a

4. Solve x² + 2x - 8 = 0.

   • A x = 1 or -8
   • B x = 2 or -4
   • C x = -2 or 4
   • D x = 8 or -1

5. Which of these is a quadratic equation?

   • A x² + 2x + 1 = 0
   • B 2x + 3 = 0
   • C 1/x = 2
   • D x³ = 8

6. Solve 2x² - 8 = 0.

   • A x = 4
   • B x = 8
   • C x = 2 or -2
   • D x = 0

7. Solve x² - 7x + 10 = 0.

   • A x = 1 or 10
   • B x = 2 or 5
   • C x = 7 or 3
   • D x = -2 or -5

8. Solve x² + 4x + 3 = 0.

   • A x = 1 or 3
   • B x = 1 or -3
   • C x = -1 or -3
   • D x = -1 or 3

9. The standard form of a quadratic equation is:

   • A ax² + bx + c = 0
   • B a/x = b
   • C ax³ + b = 0
   • D ax + b = 0

10. Solve x² = 2x.

    • A x = 2 only
    • B x = 4
    • C x = 0 or 2
    • D x = 0 only