Question

convey Step by step explanation hurry up ​

Answer 1

Answer:

1 is zero

so substitute 1 and make it equals to zero

x^2 - 2x^2 + 4x + k

(1)^2 - 2(1)^2 + 4(1) + k = 0

1 - 2 + 4 + k = 0

3 + k = 0

k = -3

Answer 2

Answer:

Given :

x = 1 is a zero of the polynomial,

so we have to substitute 1 in place of x in the polynomial

f(1) = 1² - 2(1)² + 4(1) + k

1 -2 + 4 + k = 0

1 + 2 + k = 0

k = -3

hope it helps ....