Question

Fill in the blank that completes the square:
x^2+4/3x+ _____

Answer 1

\[x ^{2}+\frac{ 4 }{ 3 }x+ blank\]

Answer 2

http://www.khanacademy.org/math/algebra/quadtratics/v/completing-the-square

Answer 3

\[(a+b)^2=a^2+2ab+b^2\]
a=x
b= ___