Вправи: 1146

1146. Спростіть вираз:

1) 4а ∙ (–Заb) = –12а²b;

2) –2m² ∙ 0,1m⁴n ∙ (–5n³) = m⁶n⁴;

3) 0,3а²b⁴ ∙ 1,2а⁴b = 0,36а⁶b⁵;

4) –6х³у⁶ ∙ 1,5хy = –9х⁴y⁷;

5) –14b²с⁸d⁸ ∙ 127b⁶d³ = –14b²c⁸d⁹ ∙ 97b⁶d³ = –18b⁸c⁸d¹²;

6) 4 9а⁴с ∙ (–12а²с³) ∙ 1,8а⁴b⁵ = 49а⁴с ∙ (–12а²с³) ∙ 95а⁴b⁵ = –9,6а¹⁰b⁵c⁴;

7) Зх⁶ ∙ (–4х²у)² = Зх⁶ ∙ 16х⁴y² = 48х¹⁰у²;

8) (–ху)³ ∙ (–2x²y²)⁴ = –х³у³ ∙ 16х⁸y⁸ = –16x¹¹y¹¹.