Answer:
[tex]P=(14a+2b)[/tex]
Step-by-step explanation:
we know that
The perimeter of a rectangle is equal to
[tex]P=2(L+W)[/tex]
where
L is the length
W is the width
we have
[tex]L=(4a+3b)\ units\\W=(3a-2b)\ units[/tex]
substitute
[tex]P=2[(4a+3b)+(3a-2b)][/tex]
Combine like terms
[tex]P=2(7a+b)[/tex]
Apply distributive property
[tex]P=(14a+2b)\ units[/tex]