Answer:
Step-by-step explanation:
The formula of a surface area of a rectangular prism:
l - length
w - width
h - height
We have l = 14in, w = 8in and deep h = 2in. Substitute:
3x² + 8x - 9
8x² - 5x² +x+7x-10+1
=3x² + 8x - 9
49min