Question #e84e5

1 Answer
Pankaj Solanki
Sep 27, 2017

To make a perfect Square add the square of half coefficient of x

#x^2-1/3x#
Coefficient of #x# is #-1/3#
its half is #-1/6#
its Square is #1/36#

add #1/36# we will get the perfect square
#x^2-1/3x+1/36=(x-1/6)^2#

Check
#(x-1/6)^2=x^2-2x/6+1/36=x^2-x/3+1/36#

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