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1.4.3 Completing the square for a quadratic curve

1.4.3 Completing the square for a quadratic curve

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Question 2

A student writes x2+8x+3≡(x+4)2+3x^2+8x+3\equiv(x+4)^2+3x2+8x+3≡(x+4)2+3.

Identify the error and write the correct identity.

[2]
Markscheme

1.4.3 Completing the square for a quadratic curve Questions

  1. A Level
  2. /Maths
  3. /1.4.3 Completing the square for a quadratic curve

8 exam-style questions on OCR (MEI) A Level Maths 1.4.3 Completing the square for a quadratic curve. Each one has a worked solution and a mark scheme showing where the marks go.

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