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04-01-2019
Mathematics

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Expand the polynomial and simplify:
(y–9)^2

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wegnerkolmp2741o wegnerkolmp2741o

04-01-2019

Answer:

= y^2 -18y +81

Step-by-step explanation:

(y–9)^2

(y-9) (y-9)

FOIL

first: y*y = y^2

outer: -9y

inner: -9y

last: -9*-9 = 81

Add them all together = y^2 -9y-9y+81

= y^2 -18y +81

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