Simplify (4w^3-4)+(2w^3+6w+9)

$(4 w^{3} - 4) + (2 w^{3} + 6 w + 9)$

Step 1

Remove parentheses.

$4 w^{3} - 4 + 2 w^{3} + 6 w + 9$

Step 2

Add $4 w^{3}$ and $2 w^{3}$ .

$6 w^{3} - 4 + 6 w + 9$

Step 3

Add $- 4$ and $9$ .

$6 w^{3} + 6 w + 5$