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(1 - 2x)² > 5²
1 - 4x + 4x² > 25
4x² - 4x - 24 > 0 --> kedua ruas dibagi 4
x² - x - 6 > 0
(x - 3) (x + 2) > 0
x = 3 atau x = -2
garis bilangan:
uji x = 0 maka hasilnya -
++++ - - - - ++++
-2 3
krn tanda > maka penyelesaian yg +
Hp = { x | x < -2 atau x > 3 }
semoga membantu ya :)