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https://www.cut-the-knot.org/Curriculum/Calculus/HornerMethod.shtml
On Horner's method here the solution towards the end of P(2) = 7, it all seems right until the last addition, 2*5+7 = 7? The solution is later written correctly as 17 in the chart, and again incorrectly as 7 in the summary.
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