Question

if length and breadth of a rectangle are( 2a +3ab+b)units and (3a+3b) units respectively, what is its area in polynomial form?

please answer. its important​

Answer 1

Answer:

area of rectangle = l×b

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

=6a^2+6ab+9a^2b+9ab^2+3ab+3b^2

=6a^2+9ab+9a^2b+9ab^2+3b^2

=3(2a^2+3ab+3a^2b+3ab^2+b^2)

=2a^2+3ab+3a^2b+3ab^2+b^2