Question

i need help with this equation please simplify 81^3/4 using a calculator

Answer 1

Notice that:

$81=3^4.^{}$

Recall that the following property of exponents:

$(a^b)^e=a^{b\times e}.$

Therefore:

$81^{\frac{3}{4}}=(3^4)^{\frac{3}{4}}=3^3.$

Answer:

$81^{\frac{3}{4}}=27.$