Question

if 5 is a root of x^2-(-k-1)x+10=0 then find the value of k​

Answer 1

Answer:

k = -8

Step-by-step explanation:

(5) ^ 2 - (-k - 1) 5 + 10 = 0

25 + 5k + 5 +10 = 0

30 + 10 + 5k = 0

40 + 5k = 0

5k = -40

k = -8

hope this helps you...