Question

Complete the square for the expression. Write the resulting expression as a binomial squared.
x2 - 12x + ____

Answer 1

hmmm.. ok do you know the formula for the expansion of

\[(a-b)^{2}\] ?

Answer 2

x^2 - 12x + 36 = (x + 6)^2
x^2 - 12x + 144 = (x - 12)^2
x^2 - 12x + 36 = (x - 6)^2
x^2 - 12x + 144 = (x + 12)^2
which one is it?

Answer 3

take the term in front of x, divide it by 2 and square it to get the first part.

(-12/2)^2=36

x^2-12x+36

Answer 4

x^2 - 12x + 36 = (x - 6)^2
or
x^2 - 12x + 36 = (x + 6)^2

Answer 5

Since the 12 is negative it would be (x-6)^2