The equation of a circle in general form is x2+y2+20x+12y+15=0 . what is the equation of the circle in standard form?

ANSWER

EXPLANATION

The equation of the circle in general form is given as:

To obtain the standard form, we need to complete the squares.

We rearrange the terms to obtain:

Add the square of half the coefficient of the linear terms to both sides to get:

Factor the perfect square trinomial and simplify the RHS.

This is the equation of the circle in standard form.

idk but i found this "the graph of y = f(x-2) is the graph of y = f(x) translated two units rightward.  

so, since the point (9,2) lies on the graph of y = f(x), the point (11,2) lies on the graph of y = f(x-2)."

step-by-step explanation:

link is