all u have to do is subtract 4! you do this because u want to isolate x so u subtract 4 from both sides. then you’ll have x= -18 !
Answer:

Step-by-step explanation:
If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.
Moreover,

The equation of such ellipse is

Hence, the equation of the ellipse is

The circumference of the circle is = 2 x pi x 6 = 37.7cm
To find the arc = 360 divided by 169 = 2.13
The arc = 37.7 divided by 2.13 = 17.69 cm
(x - 4)²
(x - 4)(x - 4)
x² - 4x - 4x + 16
x² - 8x +16