Respuesta:
[tex] \frac{1 - 12b + 36 {b}^{2} }{64} [/tex]
Explicación paso a paso:
Binomio se la forma
[tex] {(a - b)}^{2} = {a}^{2} - 2ab + {b}^{2} [/tex]
[tex] {( \frac{1}{8} - \frac{3b}{4} ) }^{2} [/tex]
[tex] {( \frac{1}{8}) }^{2} - 2( \frac{1}{8} )( \frac{3b}{4} ) + { (\frac{3b}{4} )}^{2} [/tex]
[tex] \frac{1}{64} - \frac{3b}{16} + \frac{9 {b}^{2} }{16} [/tex]
[tex] \frac{1 - 12b + 36 {b}^{2} }{64} [/tex]
