The quadratic expression -2k^2+7-5 will equal zero when K is need help with this quick

asked Aug 21, 2023 119k views

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The quadratic expression -2k^2+7-5 will equal zero when K is
need help with this quick

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3 votes

Answer:

Answer: k must be 5/2 or 1

Explanation:

${ \tt{ - {2k}^(2) + 7k - 5 = 0}}$

» Factorise the equation:

${ \tt{ {2k}^(2) - 7k + 5 = 0 }} \\ { \tt{(2k - 5)(k - 1) = 0}} \\ \\ { \tt{k = (5)/(2) \: and \: 1 }}$

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