Question

calcular de valor de R
$( \frac{2}{3} ) {n} ( \frac{4}{9} - 2n + 1( \frac{8}{27} )n$
ayuda por favor​

Answer 1

Explicación paso a paso:

$( \frac{2}{3} ) {n} ( \frac{4}{9} - 2n + 1( \frac{8}{27} )n$

$( \frac{2}{3} )n( \frac{4}{9} - 2n + ( \frac{8}{27} )n$

$( \frac{2n}{3} )( \frac{4}{9} - 2n + \frac{8n}{27} ) \\ \\ \frac{8n}{27} - \frac{4 {n}^{2} }{3} + \frac{16n^{2} }{81} simplificamos \: n^{2} \\ \\ \frac{ - 324 {n}^{2} + 48 {n}^{2} }{243} \\ \\ - \frac{276 {n}^{2} }{243} entonces \: tenemos \\ \\ - \frac{276 {n}^{2} }{243} + \frac{8n}{27} final$