Question

Will give brainliest answer please help

Answer 1

Answer:

$a^{2}(24a^{2}+36a+12)$

Step-by-step explanation:

Area of rectangle= Length*Width

so $(6a^{2}+9a+3)*4a^{2}$   multiply each coefficient of a times 4a^2

$24a^{4}+36a^{3}+12a^{2}$  then take a^2 common factor so it will be

$a^{2}(24a^{2}+36a+12)$=area