Question

Gerald has a garden in the shape of a square. The area, in square feet,

of the garden is described by the expression below.

x^2 - 6x +9
What's the length, in square feet, of each side of the garden?

Answer 1

x - 3

Explanation:

We know that the area of a square is length times width.

We also know that a quadratic can be factored:

(x - 3)²

So if each side is (x - 3), then when we do length times width, we get x² - 6x + 9. So our answer is choice D.