Thursday, June 7, 2012

Factorise, Differentiate, Evaluate


Factorise in 10 seconds
  1. m2 + 10m + 21
  2. 2x2 – x – 15
  3. 5m2 - 21m + 4
  4. x2 + 10x + 24
  5. 3m2 - 22m - 45
  6. 2x2 – 12x + 18


Differentiate in 10 seconds
  1. 5m2 - 21m + 4
  2. x8 + 10x5 + 24x
  3. 3m5 - 2m4
  4. (5m2 - 21m + 4)7
  5. (X8 + 10x5 + 24x)3
  6. (3m5 - 2m4)3
  7. (7x3 – 5)8
  8. (2x5  + 3)6
  9. (5x3 + 4)3
  10. (7 – 3x5)9


Evaluate
  1. 4mht – 3h2 when h = 3, m= 5 t = 2
  2. 7h2 – 5m when h = 3, m= 5 
  3. (4mht – 3h2) / (7h2 – 5m) when h = 3, m= 5 t = 2
  4. (4mht – 3h2) / (7h2 – 5m)     when h = 3, m= 5 t = 2  
  5. 2/3 (2x2 - 3)2/3           when x = 8
  6. 2/3 (1 + 2x2)2/3 when x = 0
  7. 2/3 (1 + 2x2)2/3 when x = 2
  8. 2/3 (2x2 - 3)2/3         when x = -8
  9. 2/3 (1 + 2x2)2/3 when x = 8
  10. 16x – 8/3x3 + x5/5 when x = 2
  11. 16x – 8/3x3 + x5/5 when x = 0
  12. 16x – 8/3x3 + x5/5 when x = 1
  13. 16x – 8/3x3 + x5/5 when x = -2

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3 comments:

  1. A.R.D.IOctober 19, 2013 at 10:52 AM

    Evaluate.
    1. 4x5x3x2-3(3)*2
    120-27=93

    ReplyDelete
  2. A.R.D.IOctober 19, 2013 at 10:54 AM

    Btw the evaluate questions are very similar to functions... or machines as Fariel usually says.

    ReplyDelete
  3. A.R.D.IOctober 19, 2013 at 11:04 AM

    Evaluate.
    13. 16(-2)-8/3(-2)^2+(-2)^5/5=
    -32-2/3+-32/5=
    -374/15
    Honestly someone please confirm if the answer correct.

    ReplyDelete

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