Answer:
-25
Step-by-step explanation:
[tex] - {4}^{2} - ( - 3 {)}^{2} \\ 4 \times 4 = 16 \\ - 16 - ( - 3 {)}^{2} \\ 3 \times 3 = 9 \\ - 16 - 9 [/tex]
[tex]\boxed{Answer:{\boxed{\green{ - 25}}}}[/tex]