Question 139155
let x=width, so 3x=length


area equals length times width __ 75=3x(x) __ 75=3x^2


3x^2-75=0 __ dividing by 3 __ x^2-25=0 __ factoring __ (x+5)(x-5)=0


x+5=0 __ x=-5 __ negative value not realistic


x-5=0 __ x=5