Relax

Respuesta :

Jsf09

Step-by-step explanation:

3. is A x^2 -6x -7

4. is C 7x^2 - 4x + 2

7 B

8 A

9 D

Answer:

[tex]question3. \: x {}^{2} - 6x - 7 \\question4. \: 7x {}^{2} - 4 x + 2 \\ question7. \: x {}^{2} - 6x + 5 \\ question8.\: 7x {}^{2} - 7x - 8 \\ question9.\: - 2x + 9[/tex]