Question

if 2 is a zeroof the polynomial f(x)=x²-8x+k then find the value of k with full explanation​

Answer 1

answer is in the attachement

hope it's helpful

Answer 2

Answer:

K=12

Step-by-step explanation:

$x {}^{2} - 8x + k \\ x = 2 \\ then \\ f(2) = 2 {}^{2} - 8(2) + k \\ 4 - 16 + k \\ - 12 + k \\ 12 = k \\ k = 12$