\(3^x+25=26.2^2+2.3^0\)
\(3^x+25=104+2\)
\(3^x+25=106\)
\(3^x=81=3^4\)
Vậy x=4
3^x+25=26 . 2^2 + 2. 3^0
3^x+25=104 +2
3^x+25=106
3^x=106+25
3^x=81=3^4
=> x=4
3
x
+25=26.2
2
+2.3
0
3
𝑥
+
25
=
104
+
2
3
x
+25=104+2
3
𝑥
+
25
=
106
3
x
+25=106
3
𝑥
=
81
=
3
4
3
x
=81=3
4
Vậy x=4