Question 188850
let x=width, so x+2=length


the width of the box is x-2-2 or x-4
the length of the box is (x+2)-2-2 or x-2


the volume is 70
so 70 = 2 (x-2)(x-4)
dividing by 2 ___ 35 = x^2 - 6x + 8
subtracting 35 ___ 0 = x^2 -6x - 27
factoring ___ 0 = (x-9)(x+3)
x = 9 or x = -3


the original cardboard is 9in wide and 11in long