Question

118V The value of k if (x - 1) is a factor of f(x) = x2 + x + k is
(a) 2
(b) 0 12 Yet-2​

Answer 1

$\huge\underline\bold\color{red}\mathfrak{Answer}$

(x - 1) is a factor. Therefore x=1 is a zero of the polynomial

x - 1 = 0

x = 1 is the zero

Substituting,

f(1) = 1² + 1 + k = 0

2 + k = 0

k = - 2

The value of k is - 2.

#WMK

Answer 2

Answer:

-2

Step-by-step explanation:

g

$x - 1 = 0 \\ x = 1 \\ p(1) = {1}^{2} + 1 + k = 0 \\ 1 + 1 + k = 0 \\ 2 + k = 0 \\ k = - 2$