✨ Free preview
🧩
Factorising a difference of squares
Factorise differences of two squares and perfect squares, and choose the right factorising method for any quadratic expression.
⏱ 20 min❓ 10 questions
What you'll be able to do
- ✔I can factorise a difference of two squares as (a + b)(a − b)
- ✔I can recognise and factorise a perfect square such as x² − 14x + 49
- ✔I can choose the right method — common factor, difference of squares, perfect square or sum–product
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
10 questions and 1 quick teaching card, including:
- 🔘Multiple choice — Tap the answer you think is best, then check it.
- ✏️Fill in the blank — Type the missing word to complete the sentence.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
Sign in and subscribe to unlock the full lesson and save your progress.
Curriculum: AC9M9A02