✨ Free preview
🔓
Factorising monic quadratics
Reverse binomial expansion by finding two numbers with a given sum and product to factorise quadratics like x² + 7x + 12.
⏱ 20 min❓ 10 questions
What you'll be able to do
- ✔I can factorise x² + bx + c by finding two numbers that multiply to c and add to b
- ✔I can use the signs of b and c to decide the signs in the factors
- ✔I can take out a common factor first and check my factors by expanding
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