[tex]y = \frac{ {x}^{3} + {x}^{2} + 16 }{x} \\ y' = \frac{( {x}^{3} + {x}^{2} + 16) ' \times x - x '( {x}^{3} + {x}^{2} + 16)}{ {x}^{2} } = \\ = \frac{x(3 {x}^{2} + 2x) - ( {x}^{3} + {x}^{2} + 16) }{ {x}^{2} } = \\ = \frac{3 {x}^{3} + 2 {x}^{2} - {x}^{3} - {x}^{2} - 16}{ {x}^{2} } = \\ = \frac{2 {x}^{3} + {x}^{2} - 16 }{x {}^{2} } [/tex]
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[tex]y = \frac{ {x}^{3} + {x}^{2} + 16 }{x} \\ y' = \frac{( {x}^{3} + {x}^{2} + 16) ' \times x - x '( {x}^{3} + {x}^{2} + 16)}{ {x}^{2} } = \\ = \frac{x(3 {x}^{2} + 2x) - ( {x}^{3} + {x}^{2} + 16) }{ {x}^{2} } = \\ = \frac{3 {x}^{3} + 2 {x}^{2} - {x}^{3} - {x}^{2} - 16}{ {x}^{2} } = \\ = \frac{2 {x}^{3} + {x}^{2} - 16 }{x {}^{2} } [/tex]