Question

Find the roots of the quadratic equation
$\frac{ {x}^{2} }{9} - 4 = 0$
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Answer 1

Solution:-

Quadratic equation:-

$\frac{ {x}^{2} }{9} −4=0$

Taking L.C.M

$\frac{ {x }^{2 - \: 36} }{9}$

${x}^{2} - 36 = 0$

${x}^{2} = 36$

$x = \sqrt{36}$

$x = + 6 \: or \: - 6$