Question

In a rectangle, the length and breadth
is given as (4a-3b) and (5a+4b).
Which expression can be used to
represent the perimeter of the same
rectangle.​

Answer 1

8a - 2b

Step-by-step explanation:

l = 4a - 3b

b = 5a + 4b

p = 2(l + b )

= 2(4a +3b + 5a - 4b )

= 2 ( 4a +5a + 3b - 4b )

= 2 ( 9a - b )

= 18a - 2b

THANKS