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Ответ:

[tex] - ( - 2ab {}^{4} ) {}^{3} = - ( - 8a {}^{3} b {}^{12} ) = 8a {}^{3} b {}^{12} [/tex]

[tex]( \frac{1}{2} a {}^{2} ) {}^{3} = 0.125a {}^{6} [/tex]

[tex](4ac {}^{4} ) {}^{3} = 64a {}^{3} c {}^{12} [/tex]

[tex]( - 10x {}^{2} y {}^{6} ) {}^{3} = - 1000x {}^{6}y {}^{18} [/tex]