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1. Find the rational zeros of the function. $(x) = 2x-15x +23x +15 x-25 2. Use Descartes's Rule of Signs to determine the possible numbers

1. Find the rational zeros of the function. $(x) = 2x-15x +23x +15 x-25 2. Use Descartes's Rule of Signs to determine the possible numbers of positive and negative real zeros of the function. f ( x ) = 3x + X + X +3

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