If the office is x ft and the width is x + 4ft. Write a polynominal A(x) that...

[wheelergary2008]

...represents the area find A(10)? Just need a tad bit of help.

 

[Mike Reid]

A(x) = x(x+4) square units.

A(10) = 10(10+4) = 10*14 = 140 square units