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Mathematics

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Quizzes in Mathematics

Algebra Mathematics

Use identity to expand: (7x + 9)(7x – 9).

  • 49x^2 + 81
  • 49x^2 – 81
  • 49x^2 – 126x – 81
  • 49x^2 + 126x – 81
Correct answer(s):
  • 49x^2 - 81
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Algebra Mathematics

Expand and simplify: (9x – 1)^2.

  • 81x^2 – 18x + 1
  • 81x^2 – 9x + 1
  • 81x^2 + 18x + 1
  • 81x^2 – 18x – 1
Correct answer(s):
  • 81x^2 - 18x + 1
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Algebra Mathematics

Solve the simultaneous equations: 1x + 3y = -11 and 1x + 1y = -5.

  • x = -2, y = -3
  • x = -1, y = -3
  • x = -2, y = -4
  • x = -3, y = -2
Correct answer(s):
  • x = -2, y = -3
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Algebra Mathematics

Solve the simultaneous equations: 4x + 1y = 0 and 4x + 3y = 8.

  • x = -1, y = 3
  • x = -1, y = 4
  • x = 0, y = 4
  • x = 4, y = -1
Correct answer(s):
  • x = -1, y = 4
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Algebra Mathematics

Solve the simultaneous equations: 1x + 3y = -2 and 5x + 5y = -10.

  • x = -2, y = 0
  • x = -2, y = -1
  • x = 0, y = -2
  • x = -1, y = 0
Correct answer(s):
  • x = -2, y = 0
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Algebra Mathematics

Solve the simultaneous equations: 4x + 4y = 24 and 1x + 2y = 13.

  • x = 0, y = 7
  • x = 7, y = -1
  • x = -1, y = 6
  • x = -1, y = 7
Correct answer(s):
  • x = -1, y = 7
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Algebra Mathematics

Solve the simultaneous equations: 3x + 2y = 18 and 4x + 2y = 22.

  • x = 4, y = 3
  • x = 3, y = 4
  • x = 5, y = 3
  • x = 4, y = 2
Correct answer(s):
  • x = 4, y = 3
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Algebra Mathematics

Solve the simultaneous equations: 4x + 1y = 10 and 3x + 2y = 15.

  • x = 1, y = 5
  • x = 2, y = 6
  • x = 1, y = 6
  • x = 6, y = 1
Correct answer(s):
  • x = 1, y = 6
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Algebra Mathematics

Solve the simultaneous equations: 2x + 4y = 20 and 5x + 1y = 14.

  • x = 3, y = 4
  • x = 4, y = 2
  • x = 2, y = 3
  • x = 2, y = 4
Correct answer(s):
  • x = 2, y = 4
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Algebra Mathematics

Solve the simultaneous equations: 5x + 4y = 40 and 4x + 1y = 32.

  • x = 8, y = -1
  • x = 9, y = 0
  • x = 8, y = 0
  • x = 0, y = 8
Correct answer(s):
  • x = 8, y = 0
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Algebra Mathematics

Solve the simultaneous equations: 3x + 2y = 28 and 3x + 5y = 43.

  • x = 5, y = 6
  • x = 6, y = 5
  • x = 6, y = 4
  • x = 7, y = 5
Correct answer(s):
  • x = 6, y = 5
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Algebra Mathematics

Solve the simultaneous equations: 4x + 1y = 34 and 5x + 5y = 50.

  • x = 9, y = 2
  • x = 2, y = 8
  • x = 8, y = 1
  • x = 8, y = 2
Correct answer(s):
  • x = 8, y = 2
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Algebra Mathematics

Solve the simultaneous equations: 2x + 1y = 4 and 3x + 1y = 8.

  • x = 4, y = -4
  • x = -4, y = 4
  • x = 4, y = -5
  • x = 5, y = -4
Correct answer(s):
  • x = 4, y = -4
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Algebra Mathematics

Solve the simultaneous equations: 5x + 4y = 36 and 2x + 4y = 12.

  • x = 8, y = -1
  • x = 9, y = -1
  • x = -1, y = 8
  • x = 8, y = -2
Correct answer(s):
  • x = 8, y = -1
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Algebra Mathematics

Solve the simultaneous equations: 2x + 3y = 35 and 4x + 3y = 49.

  • x = -7, y = -7
  • x = 7, y = 7
  • x = 7, y = 6
  • x = 8, y = 7
Correct answer(s):
  • x = 7, y = 7
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Algebra Mathematics

Solve the simultaneous equations: 3x + 5y = 43 and 2x + 5y = 42.

  • x = 8, y = 1
  • x = 1, y = 8
  • x = 2, y = 8
  • x = 1, y = 7
Correct answer(s):
  • x = 1, y = 8
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Algebra Mathematics

Solve the simultaneous equations: 4x + 1y = 32 and 1x + 4y = 8.

  • x = 8, y = -1
  • x = 9, y = 0
  • x = 0, y = 8
  • x = 8, y = 0
Correct answer(s):
  • x = 8, y = 0
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Algebra Mathematics

Solve the simultaneous equations: 5x + 2y = 48 and 1x + 3y = 33.

  • x = 9, y = 6
  • x = 7, y = 9
  • x = 6, y = 8
  • x = 6, y = 9
Correct answer(s):
  • x = 6, y = 9
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