Tolong dijawab ya kak

<p>Jawaban &nbsp;&nbsp;<strong>x &lt; 1 </strong>atau <strong>x &gt; 2&nbsp;</strong></p><p>&nbsp;</p><p><strong>Pembahasan&nbsp;</strong></p><p>5⁠⁠⁠⁠⁠⁠⁠^2x- 6.5^x+1+ 125 &gt; 0</p><p>Dimisalkan 5⁠⁠⁠⁠⁠⁠⁠^x= y, maka persamaannya menjadi:</p><p>&nbsp;</p><p>y² - 6y.5 + 125 &gt; 0</p><p>&lt;=&gt; y² - 30y + 125 &gt; 0</p><p>&lt;=&gt; (y - 5)(y - 25) &gt; 0</p><p>&lt;=&gt; y &lt; 5 atau y &gt; 25</p><p>&nbsp;</p><p>sehingga</p><p>&nbsp;</p><p>(i) 5^x&lt; 5 &nbsp;&nbsp;</p><p>&nbsp; &nbsp; &nbsp; x &lt; 1 &nbsp; &nbsp; &nbsp; &nbsp;atau</p><p>(ii) 5^x&gt; 25</p><p>&nbsp; &nbsp; &nbsp; x &gt; 2</p>