Question

2. Which of the following is the value of k if the roots of x² + kx + k = 0 are real and equal? a. O b.4 c. O or 4 d. 2 4 Solve the following (Any 2) ​

Answer 1

Answer:

Here is your answer mate,

Step-by-step explanation:

For a quadratic equation that have real and equal roots should have determinant =0

${b}^{2} - 4ac = 0$

X² + kx + k =0

On comparing,

a=1, b=k, c=k

So insert in equation

K² - 4 × 1× k =0

K²-4K =0

K(K - 4)=0

K=0, k=4

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