Recent content by Rubydeemer

Thanks Pinu7, I had tried it with quadratic formula and got x = 1734 and x = 1254 so thought I was way off. I'll try again. On your other point "On your last line, it is not supposed to be 2x^2, check your arithmetic" did you mean 4x^2? thanks again.

Homework Statement Find the centre of circle X2 + y2 + 4x – 16y + 18 = 0, show it's radius is 5√2 and find the co-ordinates where it is intersected by y = 3x - 6 Homework Equations The Attempt at a Solution X2 + y2 + 4x – 16y + 18 = 0 by completing the square using X2 + 2px = (x...