If one root of the equation `2y^(2)-ay+64=0` is twice the other then find the values of a.

If one root of the equation 2x^(2)-ax+64=0 is twice that of the other find the value of a.

If one root of the equation 2x^(2) - ax + 64 = 0 is twice that of the other then find the value of a.

If one root of the equation 3x^(2)+kx-81=0 is the square of the other then find k.

If one of the roots of the equation x^(2)+bx+3=0 is thrice the other then, b=

If he roots of the equation 12 x^2-m x+5=0 are in the ratio 2:3 then find the value of mdot

If the sum and product of the roots of the equation ax^(2)-5x+c=0 are both equal to 10 then find the values of a and c.

If sum of the roots of the equation x^3-3x^2-16x+k=0 is zero then find the value k.

Find k, if one root of the equation 5x^(2)+6x+k=0 is five times the other.

If one root of the quadratic equation 3y^(2)-ky+8=0 is 2/3 , find the value of k.