Question

find the value of k if the roots of the following equation are equal​

Answer 1

For x^2-6x+(k+7) =0 to have equal roots, the sum of the roots = -6 and the product of the roots should be 9.

Or k+7 = 9, or

k = 2. Answer.

Answer 2

Answer:

Equation x

2

−6x+k=0 has

discriminant D=b

2

−4ac

=36−4k

For real roots D>0

⇒ 36−4k>0

⇒ k<9

Step-by-step explanation:

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