anonymous
  • anonymous
How do i expand ( x + 7 )( x- 7) Explain pleasse!!!
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
since you have 4 terms here, the output should be, n^2 - 1 terms. Now to solve this follow this order.. (a+b)(a-b) => (a+b)(a+(-b)) 1) a*a 2)a*-b then 3)b*a 4)b*-b Add them all and solve. Hope this Helps. :)
Shealah
  • Shealah
lol.. You are a Doodlebop!!! :D
anonymous
  • anonymous
:P hehehhehehehhehehe..

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anonymous
  • anonymous
Its x^2- 49?
anonymous
  • anonymous
Late answer, i was busy lol
anonymous
  • anonymous
ooooooooooooooooh so this is what you meant by me being a doodlebop!!! :O
anonymous
  • anonymous
?
anonymous
  • anonymous
read the top comments mate... :P
anonymous
  • anonymous
Did i get it wrong ???? :O
anonymous
  • anonymous
nah you got it right and in the quicker manner.. I just thought an elongated explanation would be better..

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