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Completing the Square

Completing the Square

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Question 118
a.

Complete the square to show that x2+5x+4.25=(x+2.5)2−2x^2 + 5x + 4.25 = (x + 2.5)^2 - 2x2+5x+4.25=(x+2.5)2−2

[2]
b.

Hence solve x2+5x+4.25=0x^2 + 5x + 4.25 = 0x2+5x+4.25=0 Give your answers in surd form.

[3]
Markscheme

Completing the Square Questions

  1. GCSE
  2. /Maths
  3. /Completing the Square

250 exam-style questions on OCR GCSE Maths Completing the Square. Each one has a worked solution and a mark scheme showing where the marks go.

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