Higher

Factorise a quadratic (difference of two squares)

Higher

Factorise a quadratic (difference of two squares)

Lesson details

Key learning points

  1. In this lesson, we will learn how to factorise a quadratic expression as a difference of two squares

Licence

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3 Questions

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

3 Questions

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

Lesson appears in

UnitMaths / Factorise and solve a quadratic (a=1)