Question

The area of rectangular plot is 140 m sqare . the length of the plot is one less than three times its breath . what is the length and breath

Answer 1

let breath be x and length is 3x-1
x(3x-1)=140
3x^2-x-140=0
3x^2-21x+20x-140=0
x=7or x=-20/3
breath be 7m and length is 20m

Answer 2

Hello dear

Your answer,

x(3x-1)=140 

3x^2-x-140=0

3x^2-21x+20x-140=0

x=-20/3

breath be x = -20/3 m

length = - 19m

Hope this will be helpful