jika x=5, maka nilai dari x³+x pangkat -3
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[tex] \sf x = 5 \\ \sf {x}^{3} + {x}^{ - 3} \\ = \sf {5}^{3} + {5}^{ - 3} \\ = \sf125 + \frac{1}{125} \\ = \sf \frac{15625}{125} + \frac{1}{125} \\ = \boxed{ \bold{ \red{ \frac{15626}{125} }}}[/tex]
Answer By:
[tex]\large{\textbf{\textsf{\blue{Mathdy}}}}[/tex]
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