Question

In a school, (8a²+4a+9) students were enrolled. If (2a²-9a+2) students were boys,
How many girls were enrolled ?​

Answer 1

8a^2+4a+9-(2a^2-9a+2)

8a^2+4a+9-2a^2+9a-2

(6a^2+13a+7) girls were enrolled