[8.2x^(2)+x-6=0],[10.9x^(2)-3x-2=0]

Which of the following equations has 2 as a root? (a) x^(2)-4x+5=0 , (b) x^(2)+3x-12=0 (c) 2x^(2)-7x+6=0 , (d) 3x^(2)-6x-2=0

x^(2) + 3x +9=0

x^(2) + 3x +9=0

x^(2) + 3x +9=0

x^(2) + 3x +9=0

Solve by the method of completing the square: (1) 9x^(2)-15x+6=0 (2) 5x^(2)-6x-2=0

Find the equation of the circle which cuts the three circles x^(2)+y^(2)-3x-6y+14=0,x^(2)+y^(2)-x-4y+8=0 and x^(2)+y^(2)+2x-6y+9=0 orthogonally.

The centres of the three circles x^(2)+y^(2)-10x+9=0,x^(2)+y^(2)-6x+2y+1=0,x^(2)+y^(2)-9x-4y+2=0