Tìm số tự nhiên x biết:
a) 2x = 32 | b) 2 .4x =128 | c) 2x – 15 = 17 |
d) 5x+1=125 | e) 3.5x – 8 = 367 | f) 3.2x − =18 30 |
g) 52x+3-2.52=52.3 | h) 2.3x = 10. 312+ 8.274 | i) 5x-2 - 32 = 24 - (68: 66 - 62) |
k) 3𝑥+1 + 3𝑥 = 36 | m) 5𝑥+1 − 5𝑥 = 100 | n) 2𝑥+1 − 2𝑥−1 = 52 − 50 |