Question

(-7a^2+3a-9)-(5a^2-6a-4)

Answer 1

`(-7a^2+3a-9)-(5a^2-6a-4) =-7a^2+3a-9-5a^2+6a+4=\\\\ - 12a^2 + 9a - 5`

Answer 2

12a^2+9a=5(it is correct trust me)

Explanation:

I got it wrong cuz of the person on the top