Rastatony03 Rastatony03

05-11-2018
Mathematics

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Turn into a trinomial
[tex] {(9x + 1)}^{2} [/tex]

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wegnerkolmp2741o wegnerkolmp2741o

05-11-2018

(9x+1)^2

(9x+1) (9x+1)

FOIL

First 9x*9x = 81x^2

outer: 9x*1 =9x

inner 1*9x = 9x

last 1*1 =1

add them together

81x^2 +9x+9x+1

combine like terms

81x^2+18x +1

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