Question

Please help, due tomorrow. will give brainlist if correct.

Answer 1

Answer:

k=9

Step-by-step explanation:

to understand this

you need to know about:

• factor theorem
• function
• PEMDAS

tips and formulas:

• When f(c)=0 then x−c is a factor of f(x)

let's solve:

according to the question

$2( - 1)^3+7( - 1)+k = 0$

$2. - 1 - 7 + k = 0$

$- 2 - 7 + k = 0$

$- 9 + k = 0$

$k = 9$