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Title:

Expand Brackets

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Expand Brackets. This means get rid' of the brackets in cases like: 3(x 2) 4(2x 3) ... Take care with the minus sign. x(x 4) 3(x 2) x X (x 4) 3 X (x 2) ... – PowerPoint PPT presentation

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Title: Expand Brackets


1
Expand Brackets
24 November, 2009
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(x 4) 3(x 2)
Take care with the minus sign
x X (x 4) 3 X (x 2)
3
x(x 4) 3(x 2)
Take care with the minus sign
x X (x 4) 3 X (x 2) x X x x X 4 3 X x
3 X 2
Now, its 3 times x and 3 times 2
4
x(x 4) 3(x 2)
This means x times (x 4)
This means -3 times (x 2)
x X (x 4) 3 X (x 2) x X x x X 4 3 X x
3 X 2 x2 4x 3x 6
Now, its 3 times x and 3 times 2
5
x(x 4) 3(x 2)
This means x times (x 4)
This means -3 times (x 2)
x X (x 4) 3 X (x 2) x X x x X 4 3 X x
3 X 2 x2 4x 3x 6 x2 x 6
Now, its 3 times x and 3 times 2
Tidy up
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