anonymous
  • anonymous
Simplify (2z – 3)^2. 4z2 – 9 4z2 – 9z 4z2 – 12z – 9 4z2 – 12z + 9
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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jim_thompson5910
  • jim_thompson5910
|dw:1363334232850:dw|
jim_thompson5910
  • jim_thompson5910
go ahead and fill that table out for me please
anonymous
  • anonymous
|dw:1363334283151:dw|

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jim_thompson5910
  • jim_thompson5910
very good
jim_thompson5910
  • jim_thompson5910
now add up all the terms in the 4 boxes and combine like terms (if possible) \[\Large 4z^2 + (-6z) + (-6z) + 9\] \[\Large 4z^2 - 6z - 6z + 9\] \[\Large 4z^2 - 12z + 9\]
jim_thompson5910
  • jim_thompson5910
so \[\Large (2z-3)^2 = 4z^2 - 12z + 9\] for all values of z
anonymous
  • anonymous
so its 4z^2-12z+9, correct?
jim_thompson5910
  • jim_thompson5910
correct
anonymous
  • anonymous
thanks again:) you're a genius
jim_thompson5910
  • jim_thompson5910
you're welcome

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