Simplify 2a^2+ab+2b+(4a^2-3ab+9)

$2 a^{2} + a b + 2 b + (4 a^{2} - 3 a b + 9)$

Step 1

Remove parentheses.

$2 a^{2} + a b + 2 b + 4 a^{2} - 3 a b + 9$

Step 2

Add $2 a^{2}$ and $4 a^{2}$ .

$6 a^{2} + a b + 2 b - 3 a b + 9$

Step 3

Subtract $3 a b$ from $a b$ .

$6 a^{2} + 2 b - 2 a b + 9$