Question

A field's length l(x), in feet, can be represented by the expression x+10 and its width w(x), in feet, can be represented by the expression x+15. Which function represents its area?

A) x^2+25x+150
B) 4x+50
C) 2x+25
D) x^2+10x+150

Answer 1

A) x^2+25x+150

Explanation:

Area = length x width

A = (x + 10) x (x + 15)

A = x^2 + 25x + 150