Question

w.4 add and subtract polynomials 5ek
add.
$2a^{3} + (-2a^{2} - a + 8)$

Explanation:

Step1: Remove parentheses

$2a^3 - 2a^2 - a + 8$

Step2: Combine like terms (none to combine)

$2a^3 - 2a^2 - a + 8$

Answer:

$2a^3 - 2a^2 - a + 8$