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Verified answer
Kelas 9 MatematikaBab Akar dan Pangkat
^ = pangkat
5^(2x + 4) = (0,2)^(1 - x)
5^(2x + 4) = (1/5)^(1 - x)
5^(2x + 4) = (5⁻¹)^(1 - x)
2x + 4 = x - 1
2x - x = -1 - 4
x = -5