Find the equation of the circle concentric with the circle `2x^2 + 2y^2 - 6x + 8y+1=0` and of double its area.

Find the equation of a circle concentric with the circle : 2x^2 + 2y^2-6x+8y+1=0 and of double its area.

Find the equation of a circle concentric with the circle 2x ^(2) + 2y ^(2) - 6x + 8y + 1 = 0 and of double its area.

Find the equation of a circle concentric with the circle 2x^2+2y^2-6x+8y+1=0 and of double its area.

The equation of the circle concentric with the circle x^(2)+y^(2)-6x+12y+15=0 and of double its area is:

The equation of a circle concentric with the circle x^(2) + y^(2) - 6x + 12 y + 15 = 0 and double its area is

Find the equation of the circle concentric with the circle 2x^(2)+2y^(2)-8x+10y-39=0

Find the equation of a circle concentric with the circle 2x^(2)+2y^(2)-6x+8y+1=0 and double of its area.

Find the equation of the circle concentric with the circle x^2+y^2-6x+12y+15 = 0 and double of its area