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A square poster has sides measuring 2 feet less than the sides of a square sign. If the difference between their areas is 16 square feet, find the lengths of the sides of the poster and sign

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klee48
(x-2)(x-2)=Area of square poster
(x)(x)=Area of square sign
A=Area of square sign
B=Area of square poster
A-B=16
x^2-(x-2)(x-2)=16
x^2-(x^2-4x+4)=16
x^2-x^2+4x-4x=16
0=16
?????

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