This is a Rectangle

Question

A rectangle has an area of 117m^2.

Its length is 4m more than the width.

Its width is 4m less than the length.

Answer 1

X(X+4)=117

 

X^2 + 4x - 117 = 0

 

(x+13)(x-9) = 0

 

x=-13 or x=9 <--- negative measures not allowed

 

13 x 9 = 117