Question

200or 500
$\sqrt{3 {x }^{2} } + 6 = 9$
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Answer 1

Step-by-step explanation:

$\sqrt{3 {x}^{2} } + 6 = 9 \\ \therefore \: \sqrt{3} x = 9 - 6 \\ \therefore \: \sqrt{3} x = 3 \\ \therefore \: x = \frac{3}{ \sqrt{3} } \\ \huge \red{ \boxed { \therefore \: x = \sqrt{3} }}$