Question

Seja o polinomio p(x)=x³-2x²+x+1/2, determine o valor de p=(1/2).

Answer 1

Temos o seguinte polinômio:

p(x) = x³ - 2x² + x + 1/2

Vamos calcular p(1/2) :

p(1/2) = (1/2)³ - 2*(1/2)² + (1/2) + (1/2)
p(1/2) = 1/8 - 2*(1/4) + 1/2 + 1/2
p(1/2) = 1/8 - 1/2 + 1/2 + 1/2
p(1/2) = 1/8 + 1/2
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mmc 8,2 = 2*2*2 = 8
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p(1/2) = (1*1 + 4*1)/8
p(1/2) = (1 + 4) / 8
p(1/2) = 5/8