Question

Ayudaaaaa porfavor mate

Answer 1

hola

∆ resolviendo

${( \frac{2}{7} )}^{ - 1} + {2}^{ - 1} - {( \frac{5}{28} )}^{0} + {2}^{2}$

${( \frac{7}{2} )}^{1} + \frac{1}{ {2}^{1} } - 1 + 4$

$\frac{7}{2} + \frac{1}{2} - 1 + 4$

$\frac{8}{2} - 1 + 4$

$\frac{8}{2} - \frac{2}{2} + \frac{8}{2}$

$\frac{14}{2}$

$= 7$

Saludos

Answer 2

Respuesta:

hola

∆ resolviendo

{( \frac{2}{7} )}^{ - 1} + {2}^{ - 1} - {( \frac{5}{28} )}^{0} + {2}^{2}(72)−1+2−1−(285)0+22

{( \frac{7}{2} )}^{1} + \frac{1}{ {2}^{1} } - 1 + 4(27)1+211−1+4

\frac{7}{2} + \frac{1}{2} - 1 + 427+21−1+4

\frac{8}{2} - 1 + 428−1+4

\frac{8}{2} - \frac{2}{2} + \frac{8}{2}28−22+28

\frac{14}{2}214

= 7=7