## Algebra: A Combined Approach (4th Edition)

$24x^2-32x+8$
Shaded area = Larger figure - smaller figure Larger figure $= (5x-3) \times (5x-3)$ $= 25x^2-30x+9$ Smaller figure $=(x+1) \times (x+1)$ $=x^2+2x+1$ $(25x^2-30x+9)-(x^2+2x+1)$ $25x^2-30x+9-x^2-2x-1$ $=24x^2-32x+8$