Year 10
Foundation

Solve a quadratic equation by factorising

Year 10
Foundation

Solve a quadratic equation by factorising

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Lesson details

Key learning points

  1. In this lesson, we will learn how to solve a quadratic equation by factorising the expression to determine what values produce a zero multiplier.

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.
An image in a quiz
Correct answer: (a + 3)(a - 3)
(a + 3)(a - 9)
(a + 3)(a + 3)
(a + 9)(a - 9)
Q2.
An image in a quiz
Correct answer: (a + 10)(a - 10)
(a + 100)(a - 100)
(a + 25 )(a - 4)
(a + 50)(a - 50)
Q3.
An image in a quiz
(5 - a )(5 + a)
(5 + a)(5 - a )
Correct answer: (a - 5)(5 + a)
(a + 5)( -a + 5)

3 Questions

Q1.
An image in a quiz
(a + 3)(a + 4)
a = -12
Correct answer: a = -3 and a = -4
a = 3 and a = 4
Q2.
An image in a quiz
a = -3 and a = -4
a = -3 and a = 4
Correct answer: a = 3 and a = -4
a = 3 and a = 4
Q3.
An image in a quiz
a = -18 and a = 2
a = -6
Correct answer: a = -6 and a = 6
a = 12 and a = -3