Saturday, 24 January 2026

 

📘 Class 8 Maths – Chapter 14: Factorisation

STEP 7: Important Exam Questions (VSA / SA / LA)

                                               
Picture used in cbsc 8th material


🟢 Very Short Answer (VSA)

  1. What is factorisation?
  2. Write the factors of x² − 9.
  3. Find the common factor of 6x + 12.
  4. State the identity for a² − b².
  5. How many terms are there in (a + b)²?

🟡 Short Answer (SA)

  1. Factorise: 10x + 20
  2. Factorise using identities: x² − 16
  3. Factorise by grouping: ax + ay + bx + by
  4. Factorise: x² + 7x + 10
  5. Write any one algebraic identity and explain it.

🔵 Long Answer (LA)

  1. Factorise using suitable method:
    6x² + 15x
  2. Factorise using identities:
    (2x + 3)² − 9
  3. Factorise completely:
    x² + 11x + 30
  4. Factorise by grouping:
    2ax − 2ay + bx − by

✍️ Examiner-Focused Tips

  • Always mention the method used
  • Write identities clearly before applying
  • Final answer must be in factor form
  • Neat steps = full marks

📘 Class 8 Mathematics – Complete Library

CBSE | NCERT | State Syllabus


Chapter 1: Rational Numbers

Chapter 2: Linear Equations in One Variable

Chapter 3: Understanding Quadrilaterals

Chapter 4: Practical Geometry

Chapter 5: Data Handling

Chapter 6: Squares and Square Roots

Chapter 7: Cubes and Cube Roots

Chapter 8: Comparing Quantities

Chapter 9: Algebraic Expressions and Identities

Chapter 10: Visualising Solid Shapes

Chapter 11: Mensuration

Chapter 12: Exponents and Powers

Chapter 14: Factorisation

Chapter 15: Introduction to Graphs

Chapter 16: Playing with Numbers

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