a) (2x²)³ ⋅ \frac{1}{4}x² = 2³ ⋅ (x²)³ ⋅ \frac{1}{4}x² = 8x⁶ ⋅ \frac{1}{4}x² = (8 ⋅ \frac{1}{4}) ⋅ (x⁶ ⋅ x²) = 2x⁸
Ответ: 2x⁸