nilai dari 256^1/4-81^3/4-(1/343)^-2/3

[tex] {256}^{ \frac{1}{4} } - {81}^{ \frac{3}{4} } - {( \frac{1}{343} )}^{ - \frac{2}{3} } \\ = {( {4}^{4}) }^{ \frac{1}{4} } - {( {3}^{4}) }^{ \frac{3}{4} } - {( {7}^{ - 3}) }^{ - \frac{2}{3} } \\ = 4 - {3}^{3} - {7}^{2} \\ = 4 - 27 - 49 \\ = - 72[/tex]