Question

Write a polynomial to represent the area of the shaded region.

A) ab
B) ab - 4x2
C) ab - x2
D) a2b2 - 4x2

Answer 1

b).

the area of the overall rectangle is ab, but you need to subtract the 4 smaller squares. each square is x^2, and there are 4 of them.
this is how they get ab-4x^2