Soal Penggemar Matematika
- Tentukan nilai x yang memenuhi persamaan berikut.
- 2x . 8x + 2 = 64 . 43x
- 8 . 2x = 1
- 2x . 23 = 0,25
- (0,04)x . 5 = 125
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- 2x . 8x + 2 = 64 . 43x
2x . 23(x + 2) = 26 . 22(3x)
2x . 23x + 6 = 26 . 26x
2x + 3x + 6 = 26 + 6x
24x + 6 = 26 + 6x
4x + 6 = 6 + 6x
4x - 6x = 6 - 6
-2x = 0
x = 0 - 8 . 2x = 1
23 . 2x = 20
23 + x = 20
3 + x = 0
x = 0 - 3
x = -3 - 2x . 23 = 0,25
x + 3 = -2
x = -2 - 3
x = -5 - (0,04)x . 5 = 125
5-2x . 5 = 53
5-2x . 51 = 53
5-2x + 1 = 53
-2x + 1 = 3
-2x = 3 - 1
-2x = 2
x = -1
(2x + 6)4 = 3x + 15
8x + 24 = 3x + 15
8x - 3x = 15 - 24
5x = -9
- 2x . 8x + 2 = 64 . 43x