If A - 4 - -151-3 - 4 - -151-3 - then A3 - 3A is equal to

A=(4+√(15))^1/3+(4 √(15))^1/3 A^3=4+√(15)+4 √(15)+3(4+√(15))^1/3(4 √(15))^1/3((4+√(15))^1/3+(4 √(15))^1/3) A^3=8+3(16 15)^2/3A A^3=8+3A A^3 ...

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Multiplication of Rational Expressions

If A = 4 + ...

Question

If $A = {(4 + \sqrt{15})}^{1 / 3} + {(4 - \sqrt{15})}^{1 / 3}$ , then $A^{3} - 3 A$ is equal to

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