Question

25.Find the value of k so that the equation 4x^2 -8k -9 = 0 has one root as the negative of the other.​

Answer 1

Answer:

answer is this question by a u abhi

Answer 2

$Given \: Quadratic \: equation :$

$4x^{2} -8kx - 9 = 0$

$Let \: \alpha \: and \: -\alpha \:are \: roots \: of$

$of \:the \: equation$

$i) Sum \:of \: the \: roots = \frac{- Coefficient \:of \: x }{Coefficient \:x^{2}}$

$\implies \alpha - \alpha = \frac{-(-8k)}{4}$

$\implies 0 = 2k$

$\implies k = 0$

Therefore.,

$\red{ Value \:of \: k }\green {=0}$

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