Question

The diagram below shows a sandbox and the frame that surrounds it. What is the area of the frame (the shaded area)? (Giving out the Brainiest)
The length and width are in feet.

Answer 1

Answer:

$2(4x+7)\:ft$

Step-by-step explanation:

$The\:area\:of\:the\:frame: (x+3)(x+5)-(x+1)(x-1)\\=x^{2} +8x+15-x^{2} -1\\=8x+14=2(4x+7)$