Math, asked by vaishnavi7697, 5 months ago

if 2 is the zero of polynomial xsquar+Kx-6 then value of k=​

Answers

Answered by stylishheart24
0

 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: p(x) =  {x}^{2}  + kx - 6 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  p(2) =  {2}^{2}  + k(2) - 6 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 4 + 2k - 6 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 2k - 2 \\ 2k = 2 \\  \:  \:  k = 1

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