Question 125718
let x=length and y=width __ 2x+3y=100 __ 2x=100-3y


xy=350 __ 2xy=700


substituting __ (100-3y)y=700 __ 100y-3y^2=700 __ 0=3y^2-100y+700


factoring __ 0=(3y-70)(y-10)