Expansion of linear expressions Flashcards
1
Q
What do you mean by expanding
2 * (3 + 4)
A
You remove the bracket and form two seperate terms
2 * (3 + 4) = 2 * 3 + 2 * 4
2
Q
What do you mean by expanding the aglebraic expression
5(b + c)
A
You remove the bracket and form two seperate terms
5b + 5c
3
Q
What is the distributive law of multiplcation of an algebraic expression?
a(b + c)
A
It is the general rule for expansion of bracketed terms in an algebraic expression
a(b + c) = ab + ac
4
Q
Expand
2(x + y)
A
2x + 2y
5
Q
Expand
2(x - y)
A
2x - 2y
6
Q
Expand
2(3x + y)
A
6x + 2y
7
Q
Expand
2(3x - y)
A
6x - 2y
8
Q
Expand
-2(x + y)
A
-2x - 2y
9
Q
Expand
-2(x - y)
A
-2x + 2y
10
Q
Expand
-2(3x - y)
A
-6x + 2y
11
Q
Expand
-2(3x + y)
A
-6x - 2y
