Chapter 8, Problem 6CA

To determine

To find: The area(in square feet) of the shaded region.

Answer to Problem 6CA

(C) $x^2-2ax+a^2$

Explanation of Solution

Given information:

  

Calculation:Side of the shaded square $=(x-a)$ feet

Then, area of the shaded square

  $\begin{array}{l}$ ={(x-a)}^2$=(x-a)(x-a)\\ =x^2-2ax+a^2\end{array}$

Thus, area of the shaded region is $x^2-2ax+a^2$ square feet.