Simplyfy equation to receive answer
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[ Answer ]
[tex]\boxed{\frac{x^{3} }{3} }[/tex]
[ Explanation ]
Simplify: [tex]\boxed{\frac{x^{3} \ y^{4}}{3y^{4} } }[/tex]
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Cancel The Common Factor
([tex]y^{4}[/tex])
Simplify
[tex]\frac{x^{3} }{3}[/tex]
[tex]\boxed{[ \ Eclipsed \ ]}[/tex]
The correct option is B
See the attached figure for explanation