ECUACIONES EXPONENCIALES
11. 5 x+z
DIRECTAS
=8 x 2 = 64
1. 2 x 2.
12. 2 X +1 = 16
4. 2 = 1024 5. 2 x + 1 8 x
4
7.
3 x == 27
22. 125.5 X
3 == 81 9. 3 X+ 1 == 729 10.5 x 125
= 243
3x
== 1
== 2401 24. 5X2-X_ZO == 1 23. 7
CON PRODUCTOS
x
8.
2X - 1
1
+1
25. 8. 2 1 - X
= 8
6.
21. 9. 3 X -
== 64 x z 14. 2 + == 256 15. 2 x - z = 1024
13.
3. 2 X+1 = 256
X +1
20. 7.2 x = 224
= 625
= 64
26. 7x2.7-sx.74 = 1
16. 2.5 x
= 250
27. 25.5 x - 1 = 55
17.3.2 x
== 24
28. 10 x- z.I000
18. 3.5 x :; 1875 19. 3.5 x == 75
29. 7 X+ 1 . 7 x
1
= 7X-l.~
CON SUMAS Y RESTAS 30. 5 X -
1
31. 4 x
+
+ 100 :; 4 X - 1 -
5x
4 x +1
+ 44 ==
O
32. 11 x 11 x+2 = 1320 33. 3 x + 3 X +1 + 3 X - 1 = 351 34.
2X- 1
35. 3 X- 1 36. 37.
+
8. 3 X -
1 -
+ 4 X +1 -
1
=3
320 = O
28. 3 x + 3 == O 44. 9 x - 2. 3 x+z + 1 -80
+ 3x
X
45. 4 x - 3. 2 X +1 480 15
46. 5
2X
47. 5
2X
48. 4 x 49. 9 x -
+ 3 1 12 3 2x + 81 = 2.3 x +2 X
41. 3 2X -
+3 =O
43. 3ZX +2
2 x + 1 :; 7
X
-
42. 2 X +3
+ 3 X+1 = 117 2 x + 2 +1 + 2 x + 2 + 2 + 3 == 2 x + 2 X+ 1 + 2 X+ 2 + 2X+3 =
38. 3 x 39.
+
2x
28. 3 x
40. 3 2 .(X+l)
-
-
30.5 x
-
5x
6.
5.
2x
+8 =O + 125 ==
O
+5= O +4 = O
2. 3 x == 3
SOLUCIONES: 1. x==3
2.
X::;:
6
3. x==7
27. x
== 4
40.
Xl
15. x::;: 8
28.
X
==-1
41.
X
== 2
3
29.
X
-3
42. x
3
6
14. x
16.
X
1
Xz ::::
1
== 3
43.
Xl
=4
31.
X
== 2
44.
X
19. x::;: 2
32.
X
== 1
45.
Xl
== 2; x 2
20. x::;: 5
33.
X
4
46.
Xl
= 2; O;
Xz ::;:
O;
Xz
17.
X
5. x==2 6. X 2- 1
18.
X
7.
4
34.
3
Xz
30. x:::: 3
4. x:::: 10
X
== -2;
8. x=4
21.
Xl
9. x=S
X 1 35. x::;: 3
47.
22.x=-1
48.
Xl
10. X
3 11. x::;: 2
23. x::;: 3
36. x::;: 5
49.
X
24.
Xl ::;:
12. x::;: 3
25.
X
13. x::;: 7
26.
Xl
X
5;
Xz ::;:
-4
4;
37. x:::: -1 38. x::;: 2
==-2 Xz
=1
39.
X
2
-2;
= 2
1
Xz
1 == 1 1
=2