ellenabbott
ellenabbott ellenabbott
  • 16-05-2016
  • Mathematics
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how do you factorise 9y^2 - 64

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chamby80
chamby80 chamby80
  • 16-05-2016
Simplifying 9y2 + -64
 Reorder the terms: -64 + 9y2
 
Factor a difference between two squares. (8 + 3y)(-8 + 3y)

Final result:
(8 + 3y)(-8 + 3y)
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