Premium Using the Quadratic Formula | Maths Codebreaker | Answers Included

PREMIUM RESOURCE - available to purchase; this is not a free download.

Use the quadratic formula and round specified irrational roots to two decimal places.

This Premium paid resource contains one complete A4 pupil worksheet with 21 questions and a matching answer page with workings, plus a product-family guide. Pupils solve the maths, match answers to letters in the code grid and decode the hidden words.

Difficulty: Level 9 of 10 within this range (1 is easiest; 10 is most demanding). These levels are a guide to relative challenge, not GCSE grades.

Three questions from this worksheet:
1. Use the quadratic formula for 4x^2 − 5x − 1 = 0. Give the smaller root to 2 d.p.
2. Use the quadratic formula for 2x^2 + 9x + 8 = 0. Give the greater root to 2 d.p.
3. Use the quadratic formula for 2x^2 + 5x − 2 = 0. Give the greater root to 2 d.p.

Use for focused practice, consolidation, homework or a lesson activity after teaching the method. Print the pupil page for learners and retain the answer page for checking. Follow the rounding and unit instructions on the sheet.

This resource belongs to a completed 100-topic Maths Codebreakers range. Halloween codebreaker resources are also available. A mixed-topic revision codebreaker range is coming soon. These other ranges are separate resources and are not included in this download.