Tolong di bantu no. 14 yaa
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=> (3)^(-2(1/2 x - 4) ≤ 3^3(4 - x^2)
=> 3^(-x + 8) ≤ 3^(12 - 3x^2)
=> -x + 8 ≤ 12 - 3x^2
=> 3x^2 - x - 4 ≤ 0
=> (3x - 4)(x + 1) ≤ 0
=> x = 4/3 atau x = -1
garis bilangan
+++ (-1) --- (4/3) +++
HP = {x | -1 ≤ x ≤ 4/3}