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(3 - 2x)^2 < 4^2
(3 - 2x)^2 - 4^2 < 0
(3 - 2x + 4)(3 - 2x - 4) < 0
(-2x + 7)(-2x - 1) < 0
x = 7/2 atau x = -1/2
sehingga himpunan penyelesaiannya adalah :
-1/2 < x < 7/2