Question

If 6 is a root of the equation `x^2 - 8x + k= 0`, what is the value of k?

Answer 1

k=12
Substitute x=6 in the equation and solve.

Explanation:

Since 6 is a root of the equation, it should satisfy the given equation.

`(6)^2-8(6)+k=0`
`36-48+k=0`
`-12+k=0`
`k=12`