Question

(100 POINTS) One root of $x^2 + 12x + k = 0$ is twice the other root. Find $k.$

Answer 1

k=32

Explanation:

One root of x^2 + 12x + k = 0 is twice the other root. Find k

k will be the product of the two roots

12 will be the sum of the two roots

12/3=4

4*2=8

The two roots are 4,8

Multiply 4 and 8, you get 32.

k=32