Question

answer this question in steps​

Answer 1

Answer:

Heya....

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We know that

$\alpha + \beta = - \frac{b}{a}$

$where \: b \: is \: the \: coeffecient \: of \: x$

$and \: a \: is \: the \: coeffecient \: of \: {x}^{2}$

$\alpha \times \beta = \frac{c}{a}$

$where \: c \: is \: the \: constant \: term$

Therefore our question

$\alpha + \beta = \frac{1}{2} \alpha \beta$

can be rewritten as :

$\frac{k + 6}{1} = \frac{2(2k - 1)}{1}$×1/2

$k + 6 = 2k - 1$

$7= k$

Hence ,

the value of k is 7

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Answer 2

Answer:

the value of k is 7

refer to the attachment for the solution.

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