Question

Add or Subtract polynomial expressions

Answer 1

x³ + x² + 4x + - 4

Explanation:

Remove the parentheses and simplify. Expand the negative sign for the second phrase in parentheses.

-x³ + 2x² - x + 2 + 2x³ + 5x - 1 - x² - 5

x³ + x² + 4x + - 4