bogoisbakery bogoisbakery

09-11-2018
Mathematics

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wegnerkolmp2741o wegnerkolmp2741o

09-11-2018

(x+2)^2

(x+2) * (x+2)

FOIL

first x*x

outer x*2

inner 2*x

last 2+2

add them together

x^2 +2x+2x+4

x^2 +4x+4

the middle term is 4x

Choice D

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