Question

-(x+1)³+(1-x)³
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Answer 1

$- (x + 1) { }^{ 3} + (1 - x) {}^{3} \\ \\ - (x {}^{3} + 3x {}^{2} + 3x + 1) + 1 - 3x + 3x {}^{2} - x {}^{3} \\ \\ - x {}^{3} - 3x {}^{2} - 3x - 1 + 1 - 3x + 3x {}^{2} - x {}^{3} \\ \\ - 2x {}^{3} - 6x$

OTVET: -2X³ - 6X

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Answer 2

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Удачи))))