Question

I need help please quick

Answer 1

-43

Explanation:

`- k {}^(2) - (2k - 7n) + 3n`

`- ( - 3)^(2) - (2( - 3) - 7( - 4)) + 3( - 4)`

`- 9 - ( - 6 + 28) - 12`

`- 9 - 22 - 12`

`= -43`