Question

Dado o polinomio p(x) =2x³+5x²+4 calcule os seguintes valores numericos?
a) P(-1/10)​

Answer 1

$p( - \frac{1}{10} ) = 2 \times {( - \frac{ 1}{10} )}^{3} + 5 \times { ( - \frac{1}{10}) }^{2} + 4$

$p( - \frac{1}{10} ) = - \frac{2}{1000} + \frac{5}{100} + 4$

$p( - \frac{1}{10} ) = \frac{ - 2 + 50 + 4000}{1000} = \frac{4048}{1000}$

$p( - \frac{1}{10} ) = 4.048$