If f(x)= (x^m+9)^2, which statement about f(x) is true?

Alarge rectangle is divided into four smaller rectangles.

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Which of the following can be used to explain a statement in a geometric proof?