Question

The positive root of given equation will be
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Answer 1

Answer:

The positive root of given equation will be 5

Answer 2

★ Solution ★

$\large \tt \implies \sqrt{ {3x}^{2} +6} = 9 \\ \\ \large \tt \implies {3x}^{2} + 6 = {9}^{2} \\ \\\large \tt \implies {3x}^{2} + 6 = 81 \\ \\ \large \tt \implies {3x}^{2} = 81 - 6 \\ \\ \large \tt \implies {3x}^{2} = 75 \\ \\ \large \tt \implies {x}^{2} = \frac{75}{3} \\ \\\large \tt \implies {x}^{2} = 25 \\ \\\large \tt \implies x = \sqrt{25} \\ \\\large \implies \underline{ \boxed{ \tt x = 5}}$