tentukan himpunan penyelesaian |x+2|=3|×-4| tolong dibantu yaa
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no 2
|x + 2| = 3|x – 4|
|x + 2| = |3x – 12|
(x + 2 + 3x – 12)(x + 2 – (3x – 12)) = 0
(4x – 10)(-2x + 14) = 0
x = 10/4 = 5/2 atau x = -14/-2 = 7
HP = {5/2 , 7}