алгебра, напишите с решением (​

1)

a)3.5x² x=(-6)

3.5×(-6)²=3.5×36=126

б)

-0.02a²c при a=(-5) c=(-4/9)

-0.02×(-5)²×(-4/9)=-0.02×25×(-4/9)=-0.5×(-4/9)=2/9=0.2

2.

а) 20a³×(5a)²=20a³×25a²=500a⁵

б) (2/3x²y³)³×(-9x⁴)²=8/27x⁶y⁹×81x⁸=24x¹⁴y⁹

3.

а) (-03ab⁴)³=-0.027a³b¹²

б) (3x⁶y³)⁴×(-1/81x³y³)=81x²⁴y¹²×(-1/81x³y³)=-x²⁷y¹⁵

4.

a) (1/64a⁴b²)=(1/8a²b)²

b) (-27x⁶y¹⁵)=(-3x²y⁵)³