A.\(\mathop {\min }\limits_{\left( {0; + \infty } \right)} y = 3\sqrt[3]{9}\)
B.\(\mathop {\min }\limits_{\left( {0; + \infty } \right)} y = 7\)
C.\(\mathop {\min }\limits_{\left( {0; + \infty } \right)} y = \dfrac{{33}}{5}\)
D.\(\mathop {\min }\limits_{\left( {0; + \infty } \right)} y = 2\sqrt[3]{9}\)

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