Question

If area of a rectangle with length ( a - b ) and breadth ( 2a + b ) is the same as the algebraic expression Kab + 2a square- b square ,find K

Answer 1

Answer:

k=-1

Step-by-step explanation:

area = length x breadth

kab + 2a² -b² = (a-b) x (2a + b)

= 2a² -2ab + ab -b²

= 2a² -ab -b²

on comparing coefficients we see k =-1

hope it helps

pls mark as brainliest

Answer 2

Answer:

After comparing we'll get = K = -1

Step-by-step explanation:

Area of rectangle = Kab + 2a² - b²

= (a - b) × (2a + b)

= Kab + 2a² - b²

= 2a ² - 1ab - b²

= Kab + 2a² - b²

After comparing we get =

K = -1 ans.