Respuesta :

Step-by-step explanation:

A=l×b

=(2a+b)(3a+c)

=6a²+2ac+3ba+bc

hope it helps.

paudelaastha1

Answer:

6a^2+2ac+3ab+b^2

Step-by-step explanation:

Given

length=2a+b

breadth=3a+c

Now,

Area=?

We know,

Area=l*b

(2a+b)*(3a+c)

2a(3a+c)+b(3a+c)

6a^2+2ac+3ab+b^2

You can use formula (a+b)^2

a^2+2ab+b^2