Please help Neil said that -3 and 6 are the solutions to √3+18 = r. What error did Neil make?

maybe i can

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )