If one root of the equation `2x^2-5x+k=0` be twice the other, find the value of k.

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 3x^2-8x+2k+1=0 is seven times the other, find the two roots and the value of k

If one root of 2x^(2)-5x+k=0 be double the other, find the value of k.

If x=9 is one root of the quadratic equation x^2-11x+k=0 , then find the value of k.

If x=9 is one root of the quadratic equation x^(2)-11x+k=0 , then find the value of k.

If one root of the equation 2x^2+2x+k=0 is (-1/3) then find teh value of k

If one root of the quadratic equation 2x^2+k x-6=0 is 2, find the value of k . Also, find the other root.

If one root of the quadratic equation x^(2)-7x+k=0 is 2, find the value of k.

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 polynomial p(x) =x^2-6x+k is twice the other then find the value of k.