if one of the roots of the equation Kx^2+2x-23=0 is 2 then find K
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your question is so hard and long
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Answer:Given x = 2
then k(2)^2 + 2(2) - 23 = 0
= 4k + 4 - 23 = 0
= 4k - 19 = 0
= 4k = 19
= k = 19/4
ur correct answer is 19/4
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