Question

13. If (x + 2) divides (2x2 + kx - 6) find the value of k.
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Answer 1

Answer:

k value is -7

Step-by-step explanation:

hope it helped you

Answer 2

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If x + 2 divides 2x² + kx - 6 then it's one of the zero is:

x - 2 = 0

x = -2

Here, p(x) = 2x² + kx - 6

p(2) = 2 x (-2)² + k x -2 - 6

= 8 - 6 - 2k

= 2 - 2k

⇒ 2 - 2k = 0

-2k = -2

k = -2/-2

$\large{k={\green{{\underline{1}}}}}$