Answer:
[tex]15 {f}^{2} + 4w + 7w[/tex]
Step-by-step explanation:
Combine like terms,
[tex](6 {f}^{2} + 9 {f}^{2} ) + (4 {w}^{2}) + (7w) \\ = 15 {f}^{2} + 4 {w}^{2} + 7w [/tex]
Hope tis will help you!!
the answer is attached to the picture
