Question

B) Find the perimeter of a rectangle having length 5a - 4b and width 4a - 3b.​

Answer 1

$\huge\colorbox{red}{Answer}$

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

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Answer 2

Step-by-step explanation:

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