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How do you find the following product #(4xy + y)^2#?

1 Answer

Oct 24, 2016

#=16x^2y^2+8xy^2+y^2#

Explanation:

To expand the given squared sum polynomial we will apply this polynomial identity

#color(red)((a+b)^2=a^2+2ab+b^2)#

#(4xy+y) ^2#
#=color(red)((4xy)^2+2(4xy)y+y^2)#

#=16x^2y^2+8xy^2+y^2#

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