Higher

Factorise a quadratic (difference of two squares) - Higher

Higher

Factorise a quadratic (difference of two squares) - Higher

Lesson details

Key learning points

  1. In this lesson, we will learn how to factorise a difference of two squares with a leading coefficient greater than 1.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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3 Questions

Q1.
(2a + 1)(a + 12)
(2a + 2)(a + 6)
(2a + 3)(a + 4)
Correct answer: (2a + 4)(a + 3)
Q2.
(3a - 1)(a - 7)
(3a + 1)(a - 7)
(3a + 7)(a - 1)
Correct answer: (a + 7)(3a - 1)
Q3.
Correct answer: (2a - 1)(a - 5)
(2a - 1)(a + 5)
(2a + 1)(a - 5)
(2a + 1)(a + 5)

3 Questions

Q1.
Correct answer: (2a + 3)(2a - 3)
(2a + 3)(2a + 3)
(2a + 9)(2a - 9)
(4a + 3)(4a - 3)
Q2.
Correct answer: (3a + 10)(3a - 10)
(3a + 100)(3a - 100)
(3a + 25 )(3a - 4)
(3a + 50)(3a - 50)
Q3.
Correct answer: (4a - 5)(5 + 4a)
(4a + 5)( -4a + 5)
(5 - 4a )(5 + 4a)
(5 + 4a)(5 - 4a )

Lesson appears in

UnitMaths / Factorise and solve quadratics (a > 1)