Answer:
[tex]0.5a+7.5b^2[/tex]
Step-by-step explanation:
[tex]4b^2+3.5a-2a+3.5b^2-a[/tex]
Group similar terms together:
[tex]3.5a-2a-a+4b^2+3.5b^2[/tex]
Add the term [tex]b^2[/tex]:
[tex]3.5a-2a-a+7.5b^2[/tex]
Subtract the term a:
[tex]0.5a+7.5b^2[/tex]
