Factorising Expressions Using Grouping Techniques
Factorising Expressions Using Grouping Techniques
Secondary 2
Factorise each of the following expressions completely.
- \(7x\left( 4-y \right)-\left( y-4 \right)\)
- \(xa-xb+3a-3b\)
- \(14cx+10dy-4cy-35xd\)
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Answer:(a) \(\left( 4-y \right)\left( 7x+1 \right)\) (b) \(\left( a-b \right)\left( x+3 \right)\) (c) \(\left( 7x-2y \right)\left( 2c-5d \right)\)
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