Question

A circle is described by the equation x2 + y2 + 14x + 2y + 14 = 0. What are the coordinates for the center of the circle and the length of the radius?

Answer 1

try to put it in this form (x-a)^2 + (x-b)^2= r^2 where (a,b) is the centre and r is the radius
group x with x^2 and y with y^2 and complete the squaring

Answer 2

i meant (y-b)^2 not (x-b)^2 sorry