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Quadratic Equations and Simultaneous Equations MCQs - Math Test 7

MCQ: Solve equation 4x2 + 36x + 81

  1. x = 9⁄2, x = 9⁄2
  2. x = -9⁄2, x = 9⁄2
  3. x = -9⁄2, x = -9⁄2
  4. None of the above

C

MCQ: Solve equation x2 + 6x - 7 = 0

  1. x = -6, x = -1
  2. x = -6, x = 1
  3. x = 6, x = -1
  4. x = 6, x = 1

D

MCQ: Solve equation x2 + 3x

  1. x = -3
  2. x = 0, x = -3
  3. x = 3
  4. x = 0, x = 3

B

MCQ: Solve equation x2 - 3x

  1. x = -3
  2. x = 0, x = -3
  3. x = 3
  4. x = 0, x = 3

D

MCQ: Find by using formula roots for following equation: ax2 + bx + c

  1. (-b±?(b2 - 4ac)) ⁄ 2a
  2. (b ± ?(b2 - 4ac)) ⁄ 2a
  3. (-b ± ?(b2 + 4ac)) ⁄ 2a
  4. (-b ± ?(b2 - 4c)) ⁄ 2a

A