Abdujalilchik

Ответ:

1) 3,5*3m = 10,5m

2) -6ax³*9bx²= -54ax²+²b= -54ax⁵b = -54abx⁵

3) (4m²)²= 4²*(m²)²= 16m⁴

4) (-2xy³)²= 4x²y⁶

5) 25a⁴*(3a³)²=225a¹⁰