Вправи: 280

280. Спростіть вираз:

1) 2a³ ∙ (–5a⁴b⁵)² = 2a³ ∙ 25a⁸b¹⁰ = 50a¹¹b¹⁰;

2)(–x⁶y)³ ∙ 11x⁴y⁵ = –x¹⁸y³ ∙ 11х⁴y⁵ = –11х²²y⁸;

3) (–0,6а³b⁵с⁶)² ∙ За²с⁸ = 0,36a⁶b¹⁰с¹² ∙ Зa²с⁸ = 1,08a⁸b¹⁰c²⁰;

4) –1311m⁴n⁹ ∙ (–17mn³)² = –1411m⁴n⁹ ∙ 149m²n⁶ = –277m⁶n¹⁵;

5) 179x⁷y² ∙ (34x²y⁹)⁴ = 169x⁷y² ∙ 81256x⁸y³⁶ = 916x¹⁵y³⁸;

6) –(–2c²d⁵)⁷ ∙ (–12c⁴d⁵)⁴ = 128c¹⁴d³⁵ ∙ 116c¹⁶d²⁰ = 8c³⁰d⁵⁵.