Algebra 1 factorisation by grouping

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Algebra 1 factorisation by grouping

  1. 1. Common factorRevision from previous lesson http://www.mymaths.co.uk/gold/factorising/factoriseExpressions.html steps 1­4­7­9 1
  2. 2. AlgebraBy the end of the lesson you should be able to : • Multiply  two  brackets. • Factorise expressions by grouping. 2
  3. 3. Multiplying two brackets(x + y) ( 2 + a ) = 3
  4. 4.  Expand  the brackets:( x + 3 ) ( x ­ 5 ) = 4
  5. 5.  Expand  the brackets:( x ­5 ) ( x ­ 4 ) = 5
  6. 6.  Expand  the brackets:( 2x ­1 ) ( 3x ­ 2 ) = 6
  7. 7.  Expand  the brackets: 7
  8. 8.  Expand  the brackets: 8
  9. 9. Factorise the expression: a ( 2 + x ) + b ( 2 + x) =   9
  10. 10. Factorise:2 a + a x + 2 b + b x =  10
  11. 11. Factorise:3 (x ­ y )+ a ( x ­ y )= 11
  12. 12. Factorise:3 x ­ 3 y + ax ­ a y = 12
  13. 13.  Expand  the brackets: Expand ( x ­ 5 ) ( x + a ) =  x2 + x a ­ 5 x ­ 5 a Factorise 13
  14. 14. Factorise:a x + b x + ay + by = 14
  15. 15. Factorise:xy +mx + 3y +3 m = 15
  16. 16. Factorise: 2 t ­ 3 ta + t ­  3a= Solve worksheet "Factorisation by grouping in pairs" 16
  17. 17. 2  a + a ­ ab ­ b = 17
  18. 18. 2  3x + 6x ­ ab ­ 2ab = 18
  19. 19. 2  5y ­ 2y ­ 5ay + 2a = 19

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