If the equation \( 9 x^{2}+6 k x+4=0 \) has equal roots, then the roots are both equal to
(W)
(a... VIDEO
If the equation \( 9 x^{2}+6 k x+4=0 \) has equal roots, then the roots are both equal to
(W)
(a) \( \pm \frac{2}{3} \)
(b) \( \pm \frac{3}{2} \)
(c) 0
(d) \( \pm 3 \)
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