How do you simplify: - 5x³ - ( 4x - x³ )?

-5x³ - (4x - x³)

= -5x³ - 4x + x³ {distributed negative sign through parentheses}

=

= -5x³ - 4x + x³ {distributed negative sign through parentheses}

=

**- 4x³ - 4x**{combined like terms}*© Algebra House*