Skip to content

Course home

1.4.3 Completing the square for a quadratic curve

1.4.3 Completing the square for a quadratic curve

EasyMediumHard
12
Question 1

A rectangle has sides of length x x\,x cm and (x+4)(x+4)(x+4) cm, where x>0x>0x>0. Its area is 12 cm2^22.

a.

By completing the square, determine the dimensions of the rectangle.

[4]
b.

Find the exact length of its diagonal.

[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.

Question bank