Evaluate the following formula for x₁ = 97.68, X₂ = 97.28, H₁ - H₂=0,0₁ = 0.79, 0₂ = 0.66, n₁ = 18, and n₂ = 58. Z= Z= (x₁-x₂)-(H₁-H₂) 0²0² + n₁ n₂ (Round to two decimal places as needed.)

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