Question

The length of a rectangle is 8 m less than thrice it's width if area of the rectangle is 1675 sq m then find the length and width of rectangle

Answer 1

width=x Length y=3x-8
x*(3x-8)=1675
3x^2-8x-1675=0
compare with ax^2+bx+c=0
x=(-b(+/-)✓(b^2-4ac))/2a
x=(8+142)/6. or x={8-142)/6
As negative is not possible
x=150/6=25
y=3*25-8=75-8=67