\[\boxed{\mathbf{34.}}\]
\[M = \lbrack 0; + \infty).\]
\[- x^{2} - 4x + 5 > 0\]
\[x^{2} + 4x - 5 < 0\]
\[D_{1} = 4 + 5 = 9\]
\[x_{1} = - 2 + 3 = 1;\]
\[x_{2} = - 2 - 3 = - 5;\]
\[(x + 5)(x - 1) < 0\]
\[- 5 < x < 1.\]
\[Решение\ неравенства:\]
\[x \in \lbrack 0;1).\]
\[Ответ:\ x \in \lbrack 0;1).\]
\[M = \lbrack 0; + \infty).\]
\[x^{2} - 2x - 8 < 0\]
\[D_{1} = 1 + 8 = 9\]
\[x_{1} = 1 + 3 = 4;\]
\[x_{2} = 1 - 3 = - 2;\]
\[(x + 2)(x - 4) < 0\]
\[- 2 < x < 4.\]
\[Решение\ неравенства:\]
\[x \in \lbrack 0;4).\]
\[Ответ:\ x \in \lbrack 0;4).\]