Linear Algebra Examples

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

Step 1

Add the expressions.

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

Step 2

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

$7 a^{2} + 2 a b - 3 b^{2} - 9 b - 4 b^{2}$

Step 3

Subtract $4 b^{2}$ from $- 3 b^{2}$ .

$7 a^{2} + 2 a b - 7 b^{2} - 9 b$