Question

solve: cbrt(x^(2)+2)=3. Solve it fast

Answer 1

$\sqrt[3]{ {x}^{2} + 2 } = 3 \\ cubing \\ {x}^{2} + 2 = {3}^{3} \\ {x}^{2} + 2 = 27 \\ {x}^{2} = 25 \\ x = |5| \\ x = 5 \\ x = - 5$

hope it helps.

Answer 2

$\huge\mathbb{\underline{Answer}}$

Thanks bro for your help !!