factories the equation
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let x square is x and y square isy and solve
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Answer:
x^4 + x^2×y^2 + y^4
x^4 + x^2×y^2 + x^2×y^2 + y^4
x^2(x^2+y^2) + y^2(x^2+y^2)
(x^2 + y^2)(x^2 + y^2)
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