Question

find the positive root of
$\sqrt{3 {x }^{2} } \: + 6 = 9$
​

Answer 1

Answer:

Ans......................

Step-by-step explanation:

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Answer 2

Answer:

$x=$±$\sqrt{3}$

Step-by-step explanation:

$\sqrt{3x^2} =3$

Square both sides.

$3x^2=9$

$x^2=3$

∴$x=\sqrt{3}$ or $x=-\sqrt{3}$

In this kind of equation, you have to check the root.

∴$x=\sqrt{3}$ (true)

∴$x=-\sqrt{3}$ (true)