Question

the length of a side of a rectangle is 2 unit less than a number, and the width is 4 units more than the length. which of the following expressions represents area of the rectangle, in square units?

Answer 1

let the unknown no. be 'x'. so,
length=(x-2)
width=(x-2)+4
area of a rectangle=width * length
so,
(x-2) *(x-2+4)=area

Answer 2

thank you