(-8)^(-4/3)
Let's calculate: (-8)-43
ⓘ The factor is moved to the numerator or the denominator by changing the sign of its exponent, for a nonzero base: (-8)-43 = 1(-8)43
1(-8)43
ⓘ 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: (-8)43 = 843
1843
ⓘ An exponent m/n means taking the nth root and then the mth power; here, the root of order 3 of 8 is 2: 843 = 24
124
ⓘ Powers are computed before multiplications, additions and subtractions. An integer power is a repeated product: 24 = 2×2×2×2 = 16
▶Result:   116
The numeric value of: 116 is:
▷ 0.0625