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Factorising

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6.4Factorising

Factorising Revision Questions

1. . What is the greatest common factor of the terms in the expression

2xy3 - 6x2y - 10xy
  1. x
  2. y
  3. xy
  4. 2xy

Correct Answer: D

2. . What is the factorised form of the expression

3x4 - 5xy + 15xy2
  1. 15xy(x3 - y + y2)
  2. 15x(x3y - y + y2)
  3. 3x(5x3 - 3y + 5y2)
  4. x(3x3 - 5y + 15y2)

Correct Answer: D

3. . The expression

x2 - x - 4 - x + 5

is equivalent to

  1. (x - 1)(x + 5)
  2. (x2 - 2x + 1)
  3. (x - 2)(x - 5)
  4. (x - 1)2

Correct Answer: D

4. . Which expression below is equivalent to

x3 - 3 + 4x + 4 - 4x
  1. (x - 1)(x2 + x + 1)
  2. (x - 2)(x2 + 4)
  3. (x + 1)(x2 - x + 1)
  4. (x2 + 1)(x + 4)

Correct Answer: A

5. . Which expression below is equivalent to

x2 - 16
  1. (x - 4)2
  2. (x - 4)(x + 4)
  3. (x - 2)(x2 - 4x + 8)
  4. (x + 4)2

Correct Answer: B

6. . What is the factorised form of the expression

x2 - 2x - 3
  1. (x - 1)(x + 3)
  2. (x + 1)(x - 3)
  3. (x - 2)(x + 1)
  4. (x - 1)(x - 3)

Correct Answer: B

7. . Which of the following expressions is equivalent to

x2 - 6x + 9
  1. (x - 1)(x - 9)
  2. (x - 3)(x + 3)
  3. (x - 3)2
  4. (x + 3)2

Correct Answer: C

8. . The expression

(2x - 1) + 3(4x - 2)

is equivalent to

  1. (14x - 2)(x + 6)
  2. (x + 6)(2x - 1)
  3. 7(2x - 1)
  4. (2x - 1)(4x - 2)

Correct Answer: C

9. . What is the factorised form of the quadratic equation

5x2 + 9x - 2
  1. (4x - 1)(x - 2)
  2. (5x + 1)(x - 2)
  3. (x - 1)(5x + 2)
  4. (5x - 1)(x + 2)

Correct Answer: D

10. . Which of the following expressions is equivalent to

6x2 + 11x + 4
  1. (2x + 1)(3x + 4)
  2. (3x + 1)(2x + 4)
  3. (3x + 2)(2x + 2)
  4. (6x - 1)(x - 4)

Correct Answer: A

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  2. Expressions Math tutorial: Factorising. Read the Factorising math tutorial and build your math knowledge of Expressions
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  4. Expressions Revision Notes: Factorising. Print the notes so you can revise the key points covered in the math tutorial for Factorising
  5. Check your calculations for Expressions questions with our excellent Expressions calculators which contain full equations and calculations clearly displayed line by line. See the Expressions Calculators by iCalculator™ below.
  6. Continuing learning expressions - read our next math tutorial: Algebraic Fractions

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