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anaguzman
anaguzman anaguzman
  • 21-02-2017
  • Mathematics
Answered

someone please help me!!!!!

someone please help me!!!!! class=

Verified Answer :

ULKa
ULKa ULKa
  • 21-02-2017

(3a-7)^2= (3a)^2 - 23a7 + 7^2= 9a^2- 42a+ 49

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