Lesson eLearning

Factorise the quadratic polynomial .

easy 1 mark Class 9 · Mathematics · Polynomials
Answer

The correct answer is — Expand to verify: .

Step-by-step solution

  1. Identify two numbers whose product is 12 and sum is 7.
  2. The numbers are 3 and 4.
  3. Rewrite the polynomial as .
  4. Expand to verify: .
Common mistake: Mixing up signs or forgetting to test factor pairs

Concept tested: Factoring quadratic

Published · How this solution was prepared and checked

← All Polynomials questions