Question 1026660
see the worksheet below.


look below the worksheet for further comments.


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these follow the form of (a^2 - b^2) = (a-b) * (a+b)


in this problem, a^2 = 8x^2 and b^2 = 2y^2.


to find a, take the square root of 8x^2 to get sqrt(8) * x.


to find b, take the square root of 2y^2 to get sqrt(2) * y.


the rest follows as shown in the worksheet.