Answer:
[tex]-2b^2+17b-15[/tex] is your answer. I hope this helps! Let me know if I got anything wrong or if you need any help.
Step-by-step explanation:
[tex](b^2+13b-9)-(6-4b+3b^2)[/tex]
Expland the brackets.
[tex]b^2+13b-9-6+4b-3b^2[/tex]
Add like terms.
[tex]-2b^2 + 13b - 9-6+4b[/tex]
[tex]-2b^2+17b-9-6[/tex]
[tex]-2b^2+17b-15[/tex]
[tex]-2b^2+17b-15[/tex] is your answer. I hope this helps! Let me know if I got anything wrong or if you need any help.
