Finally, even after you changed your name 3 times
first subtract them:
-2x -4y + 4=0
x + 2y + 2 =0
x = -2-2y
sub into the first:
(-2-2y)^2 + y^2 - 10(-2-2y) - 8y +18=0
4 + 8y + 4y^2 + y^2 + 20 + 20y - 8y + 18 = 0
5y^2 + 20y + 38=0
y = (-20 + ?-360)/10 , which is not a real number. So they can't intersect
see Wolfram, they don't meet
http://www.wolframalpha.com/input/?i=plot+x%5E2+%2B+y%5E2+-+10x+-+8y+%2B+18+%3D+0+and+x%5E2+%2B+y%5E2+-+8x+-+4y+%2B+14+%3D+0
show that the circles x^2 + y^2 - 10x - 8y + 18 = 0 and x^2 + y^2 - 8x - 4y + 14 = 0 do not intersect.
Please
1 answer