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​Quadratic Equations - Factorising: Quiz 3 - Answers
1) (2x + 4)(x + 5)
 
2) (3x – 2)(2x + 4)
 
3) (4x – 3)(x – 2)
 
4) (3x + 7)(x – 4)
 
5) (6x – 5)(2x +5)
 
6) (8x – 7)(x + 3)

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Working

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Questions

Factorise the following quadratics. ​You may use a calculator. 

1) 2x² + 14x + 20

 

2) 6x² + 8x – 8

 

3) 4x² – 11x + 6

 

4) 3x² – 5x – 28

 

5) 12x² + 20x – 25

 

6) 8x² + 17x – 21

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