The standard form of circle equation is written in: (x-h)^2+(y-k)^2=r^2 get the square of binomial for x and y by completing the square x2+6x +___+y2+4y+___=1-10 where a for x = 1; a for y =1 2ab=6 2ab= 4 b for x=3 b for y = 2 b^2=9 b^2=4 (x2+6x+9)+(y2+4y+4)=1-10+9+4 The standard form of the circle with the equation x2+y2+6x+4y+10=1 is (x+3)^2+(y+2)^2 = 4