Question 970152
x= width
length is (4x+16)
Area is x*(4x+16)=4x^2 +16x
That would be a rectangle of width 5 and length 36
Area is 180.



Equivalent polynomial with area 180
length would be 20 and width 9.

A rectangle has length 7 less than three times the width.

width=y
length=3y-7
area= 3y^2-7y

A polynomial with equivalent area would be a rectangle with the width twice the previous example and the length 8 more than the width.

Then the width would be 2x and the length (2x+8).  Area is 2x*(2x+8)= 4x^2 +16x.