Question

HI I really need help with this its in the picture

Answer 1

Answer: 24a^4 + 36a^3 + 12a^2

Step-by-step explanation:

The blue rectangle has area of 4a^2*6a^2 = 24a^4

The red rectangle has area 4a^2*9a = 36a^3

The green rectangle has area 4a^2*3 = 12a^2

The total area is 24a^4 + 36a^3 + 12a^2