Question

How do you factor `x^2 – 2/3 x + 1/9`?

Answer 1

`(x-1/3)(x-1/3) -> (x-1/3)^2`

Explanation:

Note that `1/3xx1/3=+1/9" and that "1/3+1/3=2/3`

Also `(-1/3)xx(-1/3) = +1/9`

`(x-1/3)(x-1/3) -> (x-1/3)^2`