Question

Calcule o valor numérico, na forma decimal, da expressão algébrica 1/x - x + √x quando x = 4
façam cálculo por favorrrrr









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Answer 1

Resposta:

Explicação passo-a-passo:

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

Answer 2

Oie, Td Bom?!

$= \frac{1}{x} - x + \sqrt{x}$

$= \frac{1}{4} - 4 + \sqrt{4}$

$= \frac{1}{4} - 4 + 2$

$= \frac{1}{4} - 2$

$= \frac{1 - 8}{4}$

$= \frac{ - 7}{4}$

$= - \frac{7}{4}$

Att. Makaveli1996