# precalculus

posted by
**yvonne** on
.

how to solve; Xsq + ysq-4x=0

x^2 -4x + y^2 =0

x^2 -4x +4 + y^2 =4

(x-2)^2 + (y+0)^2=4

look like a circle to me.

posted by
**yvonne** on
.

how to solve; Xsq + ysq-4x=0

x^2 -4x + y^2 =0

x^2 -4x +4 + y^2 =4

(x-2)^2 + (y+0)^2=4

look like a circle to me.