Simplify 2u^3+6u^2+2+(7u^3-7u+4)

$2 u^{3} + 6 u^{2} + 2 + (7 u^{3} - 7 u + 4)$

Step 1

Remove parentheses.

$2 u^{3} + 6 u^{2} + 2 + 7 u^{3} - 7 u + 4$

Step 2

Add $2 u^{3}$ and $7 u^{3}$ .

$9 u^{3} + 6 u^{2} + 2 - 7 u + 4$

Step 3

Add $2$ and $4$ .

$9 u^{3} + 6 u^{2} - 7 u + 6$