The roots of the quadratic equation 6x² – x – 2 = 0 are

 The equation 2x² + kx + 3 = 0 has two equal roots, then the value of k is

 The sum of the roots of the quadratic equation 3ײ – 9x + 5 = 0 is

f the roots of ax² + bx + c = 0 are in the ratio m : n, then

If one root of the equation x² + px + 12 = 0 is 4, while the equation x² + px + q = 0 has equal roots, the value of q is

αand β are the roots of 4x² + 3x + 7 = 0, then the value of 1/α   +  1/β

The equation 12x² + 4kx + 3 = 0 has real and equal roots, if

If the roots of the equations ax² + 2bx + c = 0 and bx² – 2√ac x + b = 0 are simultaneously real, then

(x² + 1)² – x² = 0 has