Question: Prove the following statement (using direct method): For any rational number s, 8s ^3 + 4/7s -3 is rational (Direction: Use the definition of rational

Prove the following statement (using direct method): "For any rational number s, 8s ^3 + 4/7s -3 is rational" (Direction: Use the definition of rational numbers, closure properties of integers, and the zero- product property in your proof. You can refer to similar examples provided in the course materials.)

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