12)
2^x = 32
2^х = 2⁵
х = 5
13)
3^x = 0
x € ∅
14)
5^x = 1
5^x = 5⁰
x = 0
15)
3^x -3 = 0
3^x = 3
3^x = 3¹
x = 1
16)
3^2x = 81
(3^2)^x = 81
9^x = 81
x = 2
12. 2ˣ=2⁵; х=5
13. 3ˣ=0; ∅
14. 5ˣ=5⁰; х=0
15. 3ˣ=3; х=1
16. 3²ˣ=3⁴; 2х=4; х=2
12)
2^x = 32
2^х = 2⁵
х = 5
13)
3^x = 0
x € ∅
14)
5^x = 1
5^x = 5⁰
x = 0
15)
3^x -3 = 0
3^x = 3
3^x = 3¹
x = 1
16)
3^2x = 81
(3^2)^x = 81
9^x = 81
x = 2
12. 2ˣ=2⁵; х=5
13. 3ˣ=0; ∅
14. 5ˣ=5⁰; х=0
15. 3ˣ=3; х=1
16. 3²ˣ=3⁴; 2х=4; х=2