Jawapan

  • Pengguna Brainly
2016-02-05T15:19:16+08:00
K^13 = [k^(x+2)][k^3][k^(3x)]
k^13 = k^( x+2+3+3x)
k^13 = k^4x+5
13 = 4x + 5
4x = 13 - 5
4x = 8
x = 2
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