Respuesta :

CrazyMoosen

Answer:

5ab + 8 - 1a^2.

Step-by-step explanation:

Combining like terms, we get 3a^2 - 4a^2 = -1a^2. We get 9ab - 4ab = 5ab. Then we get, 5 + 3 = 8. Together this is 5ab + 8 - 1a^2

TheAnimeGirl

Answer:

-[tex] {a}^{2} + 5ab + 8[/tex]

solution,

[tex]3 {a}^{2} + 9ab + 5 - 4 {a}^{2} - 4ab + 3[/tex]

collect like terms:

[tex]3 {a}^{2} - 4 {a}^{2} + 9ab - 4ab + 5 +3[/tex]

Simplify:

[tex] - {a}^{2} + 5ab + 8[/tex]

hope this helps ..

Good luck on your assignment..