\[\frac{a^{3} - b^{3}}{a^{2} + ab + b^{2}} + \frac{a^{3} + b^{3}}{a^{2} - ab + b^{2}} =\]
\[= a - b + a + b =\]
\[= 2a = 2 \cdot 0,05 = 0,1\]