Skip to content
Algebraic Expansion and Factorisation · Semester 1

Factorisation of Quadratic Expressions (Cross Method)

Mastering the cross method to factorise quadratic expressions of the form ax^2 + bx + c.

Key Questions

  1. Explain the logic behind the cross method for factorising quadratics.
  2. Compare the efficiency of the cross method with trial and error for complex quadratics.
  3. Assess the conditions under which a quadratic expression can be factorised using integers.

MOE Syllabus Outcomes

MOE: Numbers and Algebra - S3MOE: Algebraic Expansion and Factorisation - S3
Level: Secondary 3
Subject: Mathematics
Unit: Algebraic Expansion and Factorisation
Period: Semester 1

Ready to teach this topic?

Generate a complete, classroom-ready active learning mission in seconds.

Browse curriculum by country

AmericasUSCAMXCLCOBR
Asia & PacificINSGAU