Question

1/x - x + raiz quadrada de x quando x=4

Answer 1

Resposta:

$\frac{1}{x} - x + \sqrt{x} \\ \frac{1}{4} - 4 + \sqrt{4} \\ \frac{1}{4} - 4 + 2 \\ \frac{1}{4} - 2 \\ \frac{1 - 8}{4} \\ \frac{ - 7}{4} \\ - 1.75$