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Quadratic Formula

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Question 25

The diagram shows a six sided shape formed from two rectangles. All measurements are given in centimetres.

A six-sided shape formed from two rectangles, with the left rectangle labelled x − 3 across the top and 2x + 1 on the left, and the right rectangle labelled 3x − 9 across the top and 4 on the right, with all measurements in centimetres.

The area of the shape is 24cm2

a.

Show that 2x2+7x−63=02x^2 + 7x - 63 = 02x2+7x−63=0

[2]
b.

Find the value of xxx. Give your answer to 3 significant figures.

[3]
Markscheme

Quadratic Formula Questions

  1. GCSE
  2. /Maths
  3. /Quadratic Formula

156 exam-style questions on AQA GCSE Maths Quadratic Formula. Each one has a worked solution and a mark scheme showing where the marks go.

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