This document provides a short review of quadratic equations, outlining key terms and concepts such as the product of numbers, factors, squares, and expanding brackets. It includes a practice activity with specific equations to factor. The focus is on foundational mathematics skills related to quadratic equations.

1. Mathematics 9: Lesson 1
Quadratic equations

2. Short Review
QE or nqe

13. Lesson language
practice

14. P __ O __ U __ T
- the result of two or
more numbers when
multiplied together
R D C

15. F __ C__ O __
- numbers or terms that
divide exactly into another
number or expression.
A T R

16. S __ U__ R __ S
- a number that is
multiplied by itself
A
Q E

17. S __ U__ R __
R __ __ T
- is a number that when
multiplied by itself gives
the number required.
Q A E
O O

18. E __ P__ N __
- to expand brackets, or multiply out,
involves multiplying every term inside
the bracket by the
term on the outside and then
collecting like terms with the aim of
removing the set of brackets.
X A D

19. F __ C__ O __ I __ I __ G
- find what can be
multiplied to get a given
expression.
A T R Z N

20. Lesson activity:
Let’s Factor It
Out!

21. (k + 1)(k − 5) = 0

22. (a + 1)(a + 2) = 0

23. (4k + 5)(k + 1) = 0

24. (2m + 3)(4m + 3) = 0