jika x=81 dan y=625 maka nilai dari (x¾.y¼)=

[tex] = {81}^{ \frac{3}{4} } . {625}^{ \frac{1}{4} } \\ = { ({2}^{4} )}^{ \frac{3}{4} } . { ({5}^{4} )}^{ \frac{1}{4} } \\ = {2}^{3} .5 \\ = 8.5 \\ = 40[/tex]