Quadratic Formula

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Hard

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

A diagram of a six-sided shape formed by two adjacent rectangles. The left rectangle has a width of x-1 and a height of 3x+2. The right rectangle has a width of 2x-5 and a height of 5. They share a common vertical side.

The area of the shape is 48cm²

Show that $x^2 + 3x - 25 = 0$

[2]

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

[3]

Quadratic Formula Questions

Practise Edexcel GCSE Maths Quadratic Formula with exam-style questions for Foundation and Higher tier. 49 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.