1. Expand Brackets
Thursday, January 29, 2015
This means ‘get rid’ of the brackets in cases
like:
3(x + 2)
4(2x + 3)
x(x + 3)
3(x – 2) + 2(x – 3)
(x + 3)(x – 2)
Low C
C
B

2. (x + 4)(x + 2) This can be
written as:

3. (x + 4)(x + 2)
x(x +2) + 4 (x + 2)
This can be
written as:

4. (x + 4)(x + 2)
x(x +2) + 4(x + 2)
x X (x + 2) + 4 X (x + 2)
This can be
written as:

5. (x + 4)(x + 2)
x(x +2) + 4(x + 2)
x X (x + 2) + 4 X (x + 2)
x X x + x X 2 + 4 X x + 4 X 2
This can be
written as:

6. (x + 4)(x + 2)
x(x +2) + 4(x + 2)
x X (x + 2) + 4 X (x + 2)
x X x + x X 2 + 4 X x + 4 X 2
x2
+ 2x + 4x + 8 = x2
+ 6x + 8
This can be
written as:

7. (x + 4)(x + 2)
x(x +2) + 4(x + 2)
x X (x + 2) + 4 X (x + 2)
x X x + x X 2 + 4 X x + 4 X 2
x2
+ 2x + 4x + 8 = x2
+ 6x + 8
This can be
written as: