If x4 + y4 = x2y2 , Find x6 + y6
x6 + y6 = (x2)3 + (y2)3
$(x^6 + y^6 = ({x^2} + {y^2})({x^4} + {y^4} - {x^2}{y^2}))$
$(x^6 + y^6 = ({x^2} + {y^2})({x^2}{y^2} - {x^2}{y^2}))$
x6 + y6 = 0
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