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How do you use synthetic substitution to evaluate P(3) for $P (x) = 2 x^{3} - 3 x^{2} - 5 x - 1$ $P(x) = 2x^3 - 3x^2 - 5x - 1$ ?

1 Answer

Sep 16, 2015

11

Explanation:

Plug in x=3, so that P(3)= $2 \cdot 3^{3} - 3 \cdot 3^{2} - 5 \cdot 3 - 1$ $2*3^3 -3*3^2 -5*3 -1$ = 11

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