Question

Express the area of the entire rectangle.

Answer 1

Answer:

$12n^4-15n^3-3n^2$

Step-by-step explanation:

The first step is to distribute the $3n^2$ to $(4n^2-5n-1)$, like so:

$(4n^2-5n-1)$$(3n^2)$

$12n^4-15n^3-3n^2$