The sum of - 4x^3+x^2 and - x^3+4x+8

Answer: - 5x³ + x² + 4x + 8

Step-by-step explanation

This is a polynomial expressions of third order.

The equation

(-4x³ + x²) + ( - x³ + 4x + 8)

Adding them together according to their order, we now have

(-4x³ + (-x³) + x² + 4x + 8)

-4x³ - x³ + x² + 4x + 8

-5x³ + x² + 4x + 8