Question

plz ans this question​

Answer 1

Answer:

answer is 2 b

Step-by-step explanation:

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Answer 2

Answer:

c) 2

Step-by-step explanation:

$given \\ f(x) = 2 {x}^{2} + kx \\ \\ and \: (x + 1) \: is \: a \: factor \: of \: f(x) \\ \\ = > f( - 1) = 0 \\ \\ = > 2 {( - 1)}^{2} + k( - 1) = 0 \\ \\ = > 2 - k = 0 \\ \\ = > k = 2$

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