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# Expand brackets 5

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### Transcript

• 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: