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Class 9 Maths Unit 4: Factorization and Algebraic Manipulation

Free MCQ practice for this FBISE unit. Three tests, each with 1 minute per question, automatic checking and an explanation after every answer.

For 9th class Federal Board (FBISE) students: Maths Chapter 4, Factorization and Algebraic Manipulation, online MCQ test.

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Animated slides

Short animated slides that explain the unit one idea at a time, plus a printable PDF. Read these first, then practise.

Beginner Practice

15 questions · 15 min

Core definitions and basic skills with clear, direct questions.

Advanced Practice

20 questions · 20 min

Tougher, conceptual questions with real-life contexts and 'why is this wrong?' items.

Exam Ready

25 questions · 25 min

A mix of question styles and difficulty for final revision. Practice only, not an official paper.

Try a few questions

Open a question to see the options and the explained answer. Then take the full test to practise under time.

Sample question 1

What is the factored form of a<sup>2</sup> − b<sup>2</sup>?

  1. (a − b)(a<sup>2</sup> + ab + b<sup>2</sup>)
  2. (a + b)(a − b)
  3. (a + b)<sup>2</sup>
  4. (a − b)<sup>2</sup>

Answer: B. The difference of two squares factorizes as a<sup>2</sup> − b<sup>2</sup> = (a + b)(a − b).

Sample question 2

What does it mean that 5x and 3xy are factors of 15x<sup>2</sup>y?

  1. Their sum is 15x<sup>2</sup>y
  2. They are equal to each other
  3. Their product is 15x<sup>2</sup>y
  4. One of them divides the other

Answer: C. 5x × 3xy = 15x<sup>2</sup>y, so they are factors of it.

Sample question 3

Factorize x<sup>3</sup> + 27.

  1. (x − 3)(x<sup>2</sup> + 3x + 9)
  2. (x + 3)(x<sup>2</sup> + 3x + 9)
  3. (x + 3)<sup>3</sup>
  4. (x + 3)(x<sup>2</sup> − 3x + 9)

Answer: D. x<sup>3</sup> + 27 = x<sup>3</sup> + 3<sup>3</sup> = (x + 3)(x<sup>2</sup> − 3x + 9).