fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial. x^2 + 22x =______
pls help me
Here's the way to do this
Take (1/2) of 22 = 11
Square it = 11^2 = 121 = what goes in the blank
Note that ( x + 11)^2 = x^2 + 22x + 121
+52 
