Question

The length of a rectangular garden is 5 m greater than the width. The area is 84 m^2. Find the dimensions of the garden.

Answer 1

let the length be x,
then breadth=x-5
area =L*B
x(x-5)=84
x^2-5x-84=0
(x+7)(x-12)=0
x=-7 or x=12

take the positive value IE 12m as the answer for length
breadth = x-5=12-5=7m