Jawaban:
|3-2x|>|x-4|
(i) f(x) > p
3-2x > x-4
-2x - x > -4-3
-3x > -7
x > -7/-3
x < 7/3 ( berubah tanda)
(ii) f(x) < -p
3-2x < -(x-4)
3-2x < -x+4
-2x+x < 4-3
-x < 1
x < 1/-1
x > -1 (berubah tanda)
jadi hp -1< x < 7/3
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Jawaban:
|3-2x|>|x-4|
(i) f(x) > p
3-2x > x-4
-2x - x > -4-3
-3x > -7
x > -7/-3
x < 7/3 ( berubah tanda)
(ii) f(x) < -p
3-2x < -(x-4)
3-2x < -x+4
-2x+x < 4-3
-x < 1
x < 1/-1
x > -1 (berubah tanda)
jadi hp -1< x < 7/3
#backtoschool2029