Вопрос в картинках...

$4^{x-1} \leq 16$
$4^{x-1} \leq 4^2$
$x-1 \leq 2$
$x \leq 2+1$
$x \leq 3$

25" alt="5^{2x+4}>25" align="absmiddle" class="latex-formula">

5^2" alt="5^{2x+4}>5^2" align="absmiddle" class="latex-formula">

2" alt="2x+4>2" align="absmiddle" class="latex-formula">

1" alt="x+2>1" align="absmiddle" class="latex-formula">

1-2" alt="x>1-2" align="absmiddle" class="latex-formula">

-1" alt="x>-1" align="absmiddle" class="latex-formula">
$-1< x \leq 3$
х є $(-1;3]$