National 5 Mathematics
Unit 1 Expressions and Formulae
Expanding brackets
You should be able to do the following.
o
o
o
o
I can collect like terms
I can use the distributive law to expand brackets
I can multiply out brackets; single and pairs
I can expand a binomial bracket and a trinomial bracket
For lessons and further practice on Expanding Brackets:
Follow the pathway from HOME > LESSON FINDER > search for BRACKETS
Check-up Exercise
1.
2.
3.
Simplify:
(a)
(c)
(b)
(d)
Expand brackets and simplify:
(a)
(c)
(b)
(d)
Expand brackets and simplify:
(a)
(c)
4.
(b)
 2 x  3 y  3x  4 y 
(d)
 3 y  2 y  4
2
 2 x  5
Remove brackets and simplify:
(a)
(c)
 2 x  3 x  1  4 x
 x  4  2 x2  3x  1
(b)
(d)
 3  y  2  y   3 1  y 
 x  3  x 2  5 x  2 