\[f(x) = \sqrt[3]{x}\]
\[f\left( (x + 1)^{2} \right) + 3f(x + 1) - 10 =\]
\[= 0\]
\[\sqrt[3]{(x + 1)^{2}} + 3\sqrt[3]{x + 1} - 10 = 0;\ \ \ \ \ \]
\[\text{\ \ \ \ }\sqrt[3]{x + 1} = t\]
\[t^{2} + 3t - 10 = 0\]
\[D = 9 + 40 = 49\]
\[t_{1},_{2} = \frac{- 3 \pm 7}{2} = 2;\ \ \ - 5\]
\[\left( \sqrt[3]{x + 1} \right)^{3} = (2)^{3}\text{\ \ \ \ \ }\]
\[x + 1 = 8\]
\[x = 7\]
\[\left( \sqrt[3]{x + 1} \right)^{3} = ( - 5)^{3}\]
\[x + 1 = - 125\]
\[x = - 126\]
\[Ответ:\ 7\ и\ ( - 126).\]