А^2 (-1,5)b 4b^2 a= (-1,25х^6) 8х (у^5)^6 = 1000 [ ((0,1х^2у^3)^2)^3=

-a²(-1,5)b4b²a=6a³b³
(-1,25x⁶)8x(y⁵)⁶= - 10x⁷y³⁰
1000((0,1x²y³)²)³=1000(10⁻²x⁴y⁶)³=10³·10⁻⁶x¹²y¹⁸=10⁻³x¹²y¹⁸=0,001x¹²y¹⁸