There zeros of a function mean the x-intercepts. simpler way: At what x-values does the graph of the equation intersect the x-axis.
I don't know the if the last term of your function is +1 or -1 , so I did both for you using desmos graphing calculator.
You can also use quadratic formula, and do the algebra, and see if you get the same answer.

Start with the standard form of a circle, where
is the center of the circle and
is the radius.

Plug in the known values.

This is the circle's equation in standard form.
Hey there,
Your question states: <span>Find the perimeter of a square whose sides are 7.
When finding the perimeter, we need to multiply each side because it is a square. So 7 times 4 would be 28
~Jurgen</span>