Question

what is the answer of a²- 3 a b - 6 b² + (3 a²- b²+ 4 a b)

Answer 1

Answer:

Step-by-step explanation:

$a^{2}$ - 3ab -6$b^{2}$ + (3$a^{2}$ - $b^{2}$ + 4ab)

so open the bracket

$a^{2}$ - 3ab -6$b^{2}$ + 3$a^{2}$ - $b^{2}$ + 4ab

add like terms

so, 4$a^{2}$ + ab -7 $b^{2}$ is the answer