(1.5x^2 - x) 3x - x^2 (9x - 3) + 8 (x^4 - 2x^3 - 1) - 3 (x^4 - 5x^3 + 2) - x^3 (5x - 1) (0.4^6 - 5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Expanding each term:
(4.5x^3 - 3x^2) - (9x^3 - 3x^2) + 8x^4 - 16x^3 - 8 - 3x^4 + 15x^3 - 6 - 0.2x^3 (5x - 1) (-5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Simplify further:
4.5x^3 - 3x^2 - 9x^3 + 3x^2 + 8x^4 - 16x^3 - 8 - 3x^4 + 15x^3 - 6 - 0.2x^3 (5x - 1) (-5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Combine like terms:
-4.5x^3 + 8x^4 - 9x^3 - 16x^3 - 3x^4 + 15x^3 - 3.8x^3 + 0.1x^6 + 0.5x^4 + 12x^3 - 25x^3 - 8 - 6
Simplified final result:
0.6x^6 - 2.7x^4 - 35.3x^3 - 14
(1.5x^2 - x) 3x - x^2 (9x - 3) + 8 (x^4 - 2x^3 - 1) - 3 (x^4 - 5x^3 + 2) - x^3 (5x - 1) (0.4^6 - 5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Expanding each term:
(4.5x^3 - 3x^2) - (9x^3 - 3x^2) + 8x^4 - 16x^3 - 8 - 3x^4 + 15x^3 - 6 - 0.2x^3 (5x - 1) (-5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Simplify further:
4.5x^3 - 3x^2 - 9x^3 + 3x^2 + 8x^4 - 16x^3 - 8 - 3x^4 + 15x^3 - 6 - 0.2x^3 (5x - 1) (-5) (5x^3 + 2) - x^3 (2x^6 + 0.8x^3 - 25)
Combine like terms:
-4.5x^3 + 8x^4 - 9x^3 - 16x^3 - 3x^4 + 15x^3 - 3.8x^3 + 0.1x^6 + 0.5x^4 + 12x^3 - 25x^3 - 8 - 6
Simplified final result:
0.6x^6 - 2.7x^4 - 35.3x^3 - 14