Question

The length of Ms. Sheahan's office is

3x yards and the width is x + 4 yards.
Write a polynomial that represents the
area. Find the area if x = 1 yd.

Answer 1

see explanation

Explanation:

the area (A) of a rectangle is calculated as

A = length × width

= 3x(x + 4) ← distribute parenthesis by 3x

A = 3x² + 12x

when x = 1 , then

A = 3(1)² + 12(1) = 3 + 12 = 15 yd²