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ellenabbott
ellenabbott ellenabbott
  • 16-05-2016
  • Mathematics
Answered

how do you factorise 9y^2 - 64

Verified Answer :

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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