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1. In the polynomial f(x) =2*x^4 - 49*x^2 +54, what is the product of the roots, and what is the sum of the roots (Note that x^n denotes the x raised to the power n, or x multiplied by itself n times)?

2. If 3√5 + √125 = 17.88, then what will be the value of √80 + 6√5 ?