Root of the equation `x^4-12x+7=0` which is approximately equal to 2 , is:

The roots of the equation 9x^2-12x+20=0 are

The abscissae of two points P,Q are the roots of the equation 2x^2+4x-7=0 and their ordinates are the roots of the equation 3x^2-12x-1=0 . Then the centre of the circle with PQ as a diameter is

If one root of the equation x^2 +px+ 12 = 0 be 4 and if the roots of the equation x^2 + px + q = 0 be equal, find q

If the equation x^(2)-2mx+7m-12=0 has equal roots, then m=

If 2 is a root of the equation x^(2) + kx +12=0 and the equation x^(2)+kx +q=0 has equal roots, find the value of q.

If one root of the equation x^(2)+p x+12=0 is 4, while the equation x^(2)+p x+q=0 has equal roots then the value of q is

If 2 is a root of the equation x^2+a x+12=0 and the quadratic equation x^2+a x+q=0 has equal roots, then q= (a) 12 (b) 8 (c) 20 (d) 16

If 2 is a root of the equation x^2+a x+12=0 and the quadratic equation x^2+a x+q=0 has equal roots, then q= (a) 12 (b) 8 (c) 20 (d) 16