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If x3+3/x=4(a3+b3) and 3x+1/x3=4(a3 - b3), then a2 - b2 is,

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If x<sup>3</sup>+3/x=4(a<sup>3</sup>+b<sup>3</sup>) and 3x+1/x<sup>3</sup>=4(a<sup>3</sup> - b<sup>3</sup>), then a<sup>2</sup> - b<sup>2</sup> is,






 
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