For what value of k- we have 7 x 2-5 x - k -4- given that x -2A- 42B- -22C- 22D- -42

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For what valu...

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For what value of k, we have 7x² - 5x + k = -4, given that x = -2,

-42

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-22

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K

K x^{2} - 5 x + K = 0

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3 \sqrt{7} x^{2} - 4 x + k = 0; x = \frac{\sqrt{7}}{3}

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