(-8)^(-4/3)
Let's calculate:
ⓘ The factor is moved to the numerator or the denominator by changing the sign of its exponent, for a nonzero base: =
ⓘ For a reduced rational exponent m/n with odd n, use the real root: the result is negative for odd m and positive for even m: =
ⓘ An exponent m/n means taking the nth root and then the mth power; here, the root of order of is : =
ⓘ Powers are computed before multiplications, additions and subtractions. An integer power is a repeated product: = =
▶Result:
The numeric value of: is:
▷