doughae
doughae doughae
  • 21-07-2017
  • Mathematics
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what is the expanded form of the given binomial (5x+9)^2

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choixongdong
choixongdong choixongdong
  • 21-07-2017
(5x+9)^2
= (5x)^2 + 2 (5x) (9) + 9^2
= 25x^2 + 90x + 81 

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