Paper 1 · Algebra
⏱ Tested in 2 exam questions since 2019
Lesson 1 of 23
Algebra 1 – Revision of Junior Cert factorising
You’ll learn
- Factorise a difference of two squares using a² − b² = (a − b)(a + b)
- Take out the highest common factor of an expression
- Factorise four-term expressions by grouping, handling the sign-flip step
- Pick the right factorising type when a question mixes all three
Most recent exam questions
- 2026 P1 Q10(f)(i)
- 2026 P1 Q7(f)
- 2026 P2 Q9(c)
- 2024 P1 Q1(a) — deferred
- 2024 P1 Q1(b) — deferred
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