christacurtisp0qfnu christacurtisp0qfnu
  • 10-12-2017
  • Mathematics
contestada

The width of a rectangle is 1 foot less than the length. The area is 2 feet^2. Find the length and width.

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KitKat69
KitKat69 KitKat69
  • 10-12-2017
A=LW
Fill in: 2=(W+1)·W 
L=W+1
multiply out: 2=W²+1
Subtract: 1=w²
find the square root: √1=√W² ≈1=w
Sub that in: 2=(1+1)·1
Solve: 2=2·1 ≈ 2=2
L=2ft
W=1 ft :) hope that makes sense
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