Question

P(3) if P(x) =x^3+3x^2-x+5

Answer 1

3^3+3(3)^2-3+5=9+27+2 =38

Answer 2

$p(x) = x ^{3} + 3x ^{2} - x + 5 \\ p(3) = 3^{3} + 3(3) ^{2} - 3 + 5 \\ \: \: \: \: \: \: \: \: \: = 27 + 27 + 2 \\ \: \: \: \: \: \: \: \: \: = 56$
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