Răspuns:
6
Explicație pas cu pas:
[tex]12 \cdot {4}^{x} - 5 \cdot {4}^{x} = 7 \cdot {2}^{12} \\(12 - 5) \cdot {( {2}^{2} )}^{x} = 7 \cdot {2}^{12} \\ 7 \cdot {2}^{2x} = 7 \cdot {2}^{12} \iff{2}^{2x} = {2}^{12} \\2x = 12 \implies \bf x = 6[/tex]
Show life that you have a thousand reasons to smile
© Copyright 2024 DOKU.TIPS - All rights reserved.
Răspuns:
6
Explicație pas cu pas:
[tex]12 \cdot {4}^{x} - 5 \cdot {4}^{x} = 7 \cdot {2}^{12} \\(12 - 5) \cdot {( {2}^{2} )}^{x} = 7 \cdot {2}^{12} \\ 7 \cdot {2}^{2x} = 7 \cdot {2}^{12} \iff{2}^{2x} = {2}^{12} \\2x = 12 \implies \bf x = 6[/tex]