If `x^2+k(4x+k-1)+2=0` has equal roots, then `k=` (a) `-2/3,\ 1` (b) `2/3,\ -1` (c) `3/2,1/3` (d) `-3/2,\ -1/3`

If x^2+2(k+2)x+9k=0 has equal roots then k= a)-1,4 b)1,-4 c)-1,-4 d)1,4

If the points (k ,\ 2k),\ (3k ,\ 3k) and (3,\ 1) are collinear, then k (a) 1/3 (b) -1/3 (c) 2/3 (d) -2/3

If the points (k ,\ 2k),\ (3k ,\ 3k) and (3,\ 1) are collinear, then k (a) 1/3 (b) -1/3 (c) 2/3 (d) -2/3

If the sum and product of the roots of the equation k x^2+6x+4k=0 are equal, then , k = (a) -3/2 (b) 3/2 (c) 2/3 (d) -2/3

x^2+(2-k)x+k-(3)/(4) is a perfect square then k= (A) 3 (B) 1 (C) 7 (D) 5

If x^2+x+1 is a factor of the polynomial 3x^3+8x^2+8x+3+5k , then the value of k is (a) 0 (b) 2/5 (c) 5/2 (d) -1

If the sum and product of the roots of the equation k x^2+6x+4k=0 are equal, then -3/2 (b) 3/2 (c) 2/3 (d) -2/3

All the value of k for which the quadratic polynomial f(x)=2x^2+k x+2=0 has equal roots is ________. (a) 4 (B) +4,-4 (c) +3,-3 (d) 2