Answer:
- 3x³ + 5
Explanation:
Remove the parenthesis from the 2 expressions, that is
x² + 1 - 4x³ + 3
- x² - 2
+ x³ + 4
Collect like terms, largest exponents to smallest, that is
(3
- 2
) + (- 4x³ + x³) + (x² - x²) + 1 + 4
=
- 3x³ + 5 ← in standard form