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Completing the Square

Completing the Square

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Question 146
a.

Show that 2x2+16x+26=2(x+4)2−62x^2 + 16x + 26 = 2(x + 4)^2 - 62x2+16x+26=2(x+4)2−6.

[3]
b.

Hence, or otherwise, verify that the coordinates of the turning point of the graph of y=2x2+16x+26y = 2x^2 + 16x + 26y=2x2+16x+26 are (−4,−6)(-4, -6)(−4,−6)

[1]
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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