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?

x - 3

Step-by-step 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.

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)