Question 871205
<pre><font face = "consolas" color = "indigo" size = 3><b>
Hi
1) 9x^2+3x+10=16y^2+154+3x
  9x^2 -16y^2 = 144
   x^2/16 - y^2/9 = 1  C(0,0)
   {{{(x - 3)^2/16 - (y -5)^2/9) = 1}}}  C(3,5)
2)x^2+4y^2+6x-7=0
(x+3)^2 + 4y^2 = 16
(x+3)^2/16 + y^2/4 = 1   C(-3,0)
{{{ x^2/16 + (y-5)^2/4 = 1}}}  C(0,5)
3)x^2-y^2+6x+10y=17
  (x+3)^2 -(y-5)^2 = 17 + 9 -25
  (x+3)^2 -(y-5)^2 = 1  C(-3,5)
Finish As Above