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Completing the Square

Completing the Square

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Question 47
a.

Write x2+2kx+5x^2 + 2kx + 5x2+2kx+5 in the form (x+a)2+b(x + a)^2 + b(x+a)2+b where a a\,a and b b\,b are expressions in kkk.

[2]
b.

Hence, or otherwise, write down the coordinates of the turning point of the graph of y=x2+2kx+5y = x^2 + 2kx + 5y=x2+2kx+5

[1]
Markscheme

Completing the Square Questions

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

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

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