Упростите вырожения 1.4a^7b^5*(-2ab^2) 2.(-5x⁴y²)³ 3.(-2a^5у)²
1. 4a⁷b⁵(-2ab²) = -8a⁸b⁷ 2. (-5x⁴y²)³ = -125x¹²y⁶ 3. (-2a⁵y)² = 4a¹⁰y²