[" The roots of "(x+a)(x+b)-8k=(k-2)^(2)" are real and equal,where "a,b,c in R," then "],[[" (A) "a+b=0," (B) "a=b," (C) "k=-3," (D) "k=0]]

If the roots of 2x^(2)-6x+k=0 are real and equal, find k.

if the roots of (a^2+b^2)x^2-2b(a+c)x+(b^2+c^2)=0 are real and equal then a,b,c are in

The roots of x^(2)+kx+k=0 are real and equal, find k.

The roots of x^(2)+kx+k=0 are real and equal, find k.

If the roots of 2x^2-6x+k=0 are real and equal , find k.

The roots of x^2+kx+k=0 are real and equal. Find K. a)0 b)4 c)0 or 4 d)2

If the roots of (a-b)x^(2)+(b-c)x+(c-a)=0 are real and equal, then prove that b, a, c are in arithmetic progression.

If the roots of the quadratic equation (b-c)x^(2)+(c-a)x+(a-b)=0 are real and equal then prove that 2b=a+c.

Complete the following activity to find the value of k, if the roots of 2x^(2) - 6x+ k = 0 are real and equal. Here, a=2,b= -6 ,c = k . The roots are real and equal. :. b^(2) - 4ac = square b^(2)- 4ac = square - 4(2) ( k ) = 0 :. square - 8 k = 0 :. 8 k = 36 :. k = square

For what value of K does 4x^(2)-2(K+1)x+(K+1)=0 have real and equal roots ?