$$= x = [ \frac { 4 } { 5 } ] ^ { - 2 } \div [ \frac { 1 } { 4 } ] ^ { 2 }$$
$x=25$
$$x=\frac{\frac{25}{16}}{\left(\frac{1}{4}\right)^{2}}$$
$$x=\frac{\frac{25}{16}}{\frac{1}{16}}$$
$$x=\frac{25}{16}\times 16$$
$$x=25$$
Show Solution
Hide Solution
$x≔25$
