Question

8.
Find the area of the rectangle whose length and
breadth are (5m - 3n) units and (4m - n) units
respectively.​

Answer 1

Answer:

20m^2 +3n^2 -17mn

Step-by-step explanation:

Area = l * b

l= 5m-3n

b=4m-n

A= (5m-3n)*(4m-n)

=5m(4m-n)-3n(4m-n)

=20m^2 -5mn- 12mn+ 3n^2

=20m^2 - 17mn + 3n^2

= 20m^2 +3n^2 -17mn

Answer 2

Answer:

20msquares-17mn+3nsquares