Question

What is the area? Bit confused on this one.

Answer 1

For the blue one:

A1=length*breadth

=3*3x^2

=9x^2

For pink:

A2=length*breadth

=3*4x

=12x

So the total area is:

A=A1+A2

=9x^2+12x

Answer 2

A = 9x² + 12x

Explanation:

The area (A) of the rectangle is calculated as

A = height × width

= 3(3x² + 4x) ← distribute parenthesis by 3

= 9x² + 12x